fix docker builds

version 0.11.14
Automatic repair for calendar objects with invalid VERSION:4.0
2026-01-30 12:58:28 +00:00 · 2026-01-15 22:31:40 +01:00 · 2026-01-15 13:32:45 +01:00 · 2026-01-15 13:30:14 +01:00 · 2026-01-15 11:15:20 +01:00 · 2026-01-12 11:15:08 +01:00
50 changed files with 2590 additions and 281 deletions
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -2,7 +2,7 @@ name: Docker

 on:
  push:
-    branches: ["main"]
+    branches: ["main", "dev"]
  release:
    types: ["published"]

--- a/.sqlx/query-146e23ae4e0eaae4d65ac7563c67d4f295ccc2534dcc4b3bd710de773ed137f9.json
+++ b/.sqlx/query-146e23ae4e0eaae4d65ac7563c67d4f295ccc2534dcc4b3bd710de773ed137f9.json
@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "DELETE FROM calendarobjectchangelog WHERE (principal, cal_id, object_id) = (?, ?, ?);",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": []
+  },
+  "hash": "146e23ae4e0eaae4d65ac7563c67d4f295ccc2534dcc4b3bd710de773ed137f9"
+}
--- a/.sqlx/query-354decac84758c88280f60fbf0f93dddc6c7ff92ac7b8ba44049d31df3c680e3.json
+++ b/.sqlx/query-354decac84758c88280f60fbf0f93dddc6c7ff92ac7b8ba44049d31df3c680e3.json
@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "UPDATE calendarobjects SET ics = ? WHERE (principal, cal_id, id) = (?, ?, ?);",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 4
+    },
+    "nullable": []
+  },
+  "hash": "354decac84758c88280f60fbf0f93dddc6c7ff92ac7b8ba44049d31df3c680e3"
+}
--- a/.sqlx/query-bdaa4bee8b01d0e3773e34672ed4805d1e71d24888f2227045afd90bf080fc23.json
+++ b/.sqlx/query-bdaa4bee8b01d0e3773e34672ed4805d1e71d24888f2227045afd90bf080fc23.json
@@ -0,0 +1,38 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT principal, cal_id, id, ics FROM calendarobjects WHERE ics LIKE '%VERSION:4.0%';",
+  "describe": {
+    "columns": [
+      {
+        "name": "principal",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "cal_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "id",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "ics",
+        "ordinal": 3,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 0
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "bdaa4bee8b01d0e3773e34672ed4805d1e71d24888f2227045afd90bf080fc23"
+}
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -154,7 +154,7 @@ dependencies = [
 "rustc-hash",
 "serde",
 "serde_derive",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -200,7 +200,7 @@ checksum = "9767c17d33a63daf6da5872ffaf2ab0c289cd73ce7ed4f41d5ddf9149c004873"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -335,7 +335,7 @@ checksum = "9035ad2d096bed7955a320ee7e2230574d28fd3c3a0f186cbea1ff3c7eed5dbb"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -477,9 +477,9 @@ checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"

 [[package]]
 name = "base64ct"
-version = "1.8.1"
+version = "1.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e050f626429857a27ddccb31e0aca21356bfa709c04041aefddac081a8f068a"
+checksum = "7d809780667f4410e7c41b07f52439b94d2bdf8528eeedc287fa38d3b7f95d82"

 [[package]]
 name = "basic-toml"
@@ -573,9 +573,9 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"

 [[package]]
 name = "cc"
-version = "1.2.51"
+version = "1.2.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a0aeaff4ff1a90589618835a598e545176939b97874f7abc7851caa0618f203"
+checksum = "cd4932aefd12402b36c60956a4fe0035421f544799057659ff86f923657aada3"
 dependencies = [
 "find-msvc-tools",
 "shlex",
@@ -623,7 +623,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a6139a8597ed92cf816dfb33f5dd6cf0bb93a6adc938f11039f371bc5bcd26c3"
 dependencies = [
 "chrono",
- "phf",
+ "phf 0.12.1",
 ]

 [[package]]
@@ -655,9 +655,9 @@ dependencies = [

 [[package]]
 name = "clap"
-version = "4.5.53"
+version = "4.5.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9e340e012a1bf4935f5282ed1436d1489548e8f72308207ea5df0e23d2d03f8"
+checksum = "c6e6ff9dcd79cff5cd969a17a545d79e84ab086e444102a591e288a8aa3ce394"
 dependencies = [
 "clap_builder",
 "clap_derive",
@@ -665,9 +665,9 @@ dependencies = [

 [[package]]
 name = "clap_builder"
-version = "4.5.53"
+version = "4.5.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d76b5d13eaa18c901fd2f7fca939fefe3a0727a953561fefdf3b2922b8569d00"
+checksum = "fa42cf4d2b7a41bc8f663a7cab4031ebafa1bf3875705bfaf8466dc60ab52c00"
 dependencies = [
 "anstream",
 "anstyle",
@@ -684,7 +684,7 @@ dependencies = [
 "heck",
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -898,7 +898,7 @@ checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -932,7 +932,7 @@ dependencies = [
 "proc-macro2",
 "quote",
 "strsim",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -945,7 +945,7 @@ dependencies = [
 "proc-macro2",
 "quote",
 "strsim",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -956,7 +956,7 @@ checksum = "d38308df82d1080de0afee5d069fa14b0326a88c14f15c5ccda35b4a6c414c81"
 dependencies = [
 "darling_core 0.21.3",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -967,7 +967,7 @@ checksum = "ac3984ec7bd6cfa798e62b4a642426a5be0e68f9401cfc2a01e3fa9ea2fcdb8d"
 dependencies = [
 "darling_core 0.23.0",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -1010,7 +1010,7 @@ dependencies = [
 "proc-macro2",
 "quote",
 "rustc_version",
- "syn 2.0.112",
+ "syn 2.0.114",
 "unicode-xid",
 ]

@@ -1034,7 +1034,7 @@ checksum = "97369cbbc041bc366949bc74d34658d6cda5621039731c6310521892a3a20ae0"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -1241,9 +1241,9 @@ dependencies = [

 [[package]]
 name = "find-msvc-tools"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "645cbb3a84e60b7531617d5ae4e57f7e27308f6445f5abf653209ea76dec8dff"
+checksum = "f449e6c6c08c865631d4890cfacf252b3d396c9bcc83adb6623cdb02a8336c41"

 [[package]]
 name = "flume"
@@ -1371,7 +1371,7 @@ checksum = "162ee34ebcb7c64a8abebc059ce0fee27c2262618d7b60ed8faf72fef13c3650"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -1484,9 +1484,9 @@ dependencies = [

 [[package]]
 name = "h2"
-version = "0.4.12"
+version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3c0b69cfcb4e1b9f1bf2f53f95f766e4661169728ec61cd3fe5a0166f2d1386"
+checksum = "2f44da3a8150a6703ed5d34e164b875fd14c2cdab9af1252a9a1020bde2bdc54"
 dependencies = [
 "atomic-waker",
 "bytes",
@@ -1494,7 +1494,7 @@ dependencies = [
 "futures-core",
 "futures-sink",
 "http",
- "indexmap 2.12.1",
+ "indexmap 2.13.0",
 "slab",
 "tokio",
 "tokio-util",
@@ -1771,7 +1771,23 @@ dependencies = [
 [[package]]
 name = "ical"
 version = "0.11.0"
-source = "git+https://github.com/lennart-k/ical-rs#dcd3b106758a054f46a5172103abb17972ad032d"
+source = "git+https://github.com/lennart-k/ical-rs?branch=dev#b1edcdf2bb7db5a302a5df3650218a9a16aefe0c"
+dependencies = [
+ "chrono",
+ "chrono-tz",
+ "derive_more",
+ "itertools 0.14.0",
+ "lazy_static",
+ "phf 0.13.1",
+ "regex",
+ "rrule",
+ "thiserror 2.0.17",
+]
+
+[[package]]
+name = "ical"
+version = "0.11.0"
+source = "git+https://github.com/lennart-k/ical-rs?rev=7c2ab1f3#7c2ab1f3abdca768f22d8a36627eebbdd7947e29"
 dependencies = [
 "chrono",
 "chrono-tz",
@@ -1904,9 +1920,9 @@ dependencies = [

 [[package]]
 name = "indexmap"
-version = "2.12.1"
+version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ad4bb2b565bca0645f4d68c5c9af97fba094e9791da685bf83cb5f3ce74acf2"
+checksum = "7714e70437a7dc3ac8eb7e6f8df75fd8eb422675fc7678aff7364301092b1017"
 dependencies = [
 "equivalent",
 "hashbrown 0.16.1",
@@ -1922,9 +1938,9 @@ checksum = "c8fae54786f62fb2918dcfae3d568594e50eb9b5c25bf04371af6fe7516452fb"

 [[package]]
 name = "insta"
-version = "1.45.1"
+version = "1.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "983e3b24350c84ab8a65151f537d67afbbf7153bb9f1110e03e9fa9b07f67a5c"
+checksum = "1b66886d14d18d420ab5052cbff544fc5d34d0b2cdd35eb5976aaa10a4a472e5"
 dependencies = [
 "console",
 "once_cell",
@@ -2018,9 +2034,9 @@ dependencies = [

 [[package]]
 name = "libc"
-version = "0.2.178"
+version = "0.2.180"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37c93d8daa9d8a012fd8ab92f088405fb202ea0b6ab73ee2482ae66af4f42091"
+checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"

 [[package]]
 name = "libm"
@@ -2334,7 +2350,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -2569,7 +2585,7 @@ dependencies = [
 "proc-macro2",
 "proc-macro2-diagnostics",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -2593,7 +2609,18 @@ version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "913273894cec178f401a31ec4b656318d95473527be05c0752cc41cdc32be8b7"
 dependencies = [
- "phf_shared",
+ "phf_shared 0.12.1",
+]
+
+[[package]]
+name = "phf"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1562dc717473dbaa4c1f85a36410e03c047b2e7df7f45ee938fbef64ae7fadf"
+dependencies = [
+ "phf_macros",
+ "phf_shared 0.13.1",
+ "serde",
 ]

 [[package]]
@@ -2602,8 +2629,8 @@ version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "efbdcb6f01d193b17f0b9c3360fa7e0e620991b193ff08702f78b3ce365d7e61"
 dependencies = [
- "phf_generator",
- "phf_shared",
+ "phf_generator 0.12.1",
+ "phf_shared 0.12.1",
 ]

 [[package]]
@@ -2613,7 +2640,30 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2cbb1126afed61dd6368748dae63b1ee7dc480191c6262a3b4ff1e29d86a6c5b"
 dependencies = [
 "fastrand",
- "phf_shared",
+ "phf_shared 0.12.1",
+]
+
+[[package]]
+name = "phf_generator"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "135ace3a761e564ec88c03a77317a7c6b80bb7f7135ef2544dbe054243b89737"
+dependencies = [
+ "fastrand",
+ "phf_shared 0.13.1",
+]
+
+[[package]]
+name = "phf_macros"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "812f032b54b1e759ccd5f8b6677695d5268c588701effba24601f6932f8269ef"
+dependencies = [
+ "phf_generator 0.13.1",
+ "phf_shared 0.13.1",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -2625,6 +2675,15 @@ dependencies = [
 "siphasher",
 ]

+[[package]]
+name = "phf_shared"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e57fef6bc5981e38c2ce2d63bfa546861309f875b8a75f092d1d54ae2d64f266"
+dependencies = [
+ "siphasher",
+]
+
 [[package]]
 name = "pin-project"
 version = "1.1.10"
@@ -2642,7 +2701,7 @@ checksum = "6e918e4ff8c4549eb882f14b3a4bc8c8bc93de829416eacf579f1207a8fbf861"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -2781,9 +2840,9 @@ dependencies = [

 [[package]]
 name = "proc-macro2"
-version = "1.0.104"
+version = "1.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9695f8df41bb4f3d222c95a67532365f569318332d03d5f3f67f37b20e6ebdf0"
+checksum = "535d180e0ecab6268a3e718bb9fd44db66bbbc256257165fc699dadf70d16fe7"
 dependencies = [
 "unicode-ident",
 ]
@@ -2796,7 +2855,7 @@ checksum = "af066a9c399a26e020ada66a034357a868728e72cd426f3adcd35f80d88d88c8"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 "version_check",
 "yansi",
 ]
@@ -2821,7 +2880,7 @@ dependencies = [
 "itertools 0.14.0",
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -2890,9 +2949,9 @@ dependencies = [

 [[package]]
 name = "quote"
-version = "1.0.42"
+version = "1.0.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a338cc41d27e6cc6dce6cefc13a0729dfbb81c262b1f519331575dd80ef3067f"
+checksum = "dc74d9a594b72ae6656596548f56f667211f8a97b3d4c3d467150794690dc40a"
 dependencies = [
 "proc-macro2",
 ]
@@ -3017,7 +3076,7 @@ checksum = "b7186006dcb21920990093f30e3dea63b7d6e977bf1256be20c3563a5db070da"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -3148,9 +3207,9 @@ dependencies = [

 [[package]]
 name = "rsa"
-version = "0.9.9"
+version = "0.9.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40a0376c50d0358279d9d643e4bf7b7be212f1f4ff1da9070a7b54d22ef75c88"
+checksum = "b8573f03f5883dcaebdfcf4725caa1ecb9c15b2ef50c43a07b816e06799bb12d"
 dependencies = [
 "const-oid",
 "digest",
@@ -3191,7 +3250,7 @@ dependencies = [
 "regex",
 "relative-path",
 "rustc_version",
- "syn 2.0.112",
+ "syn 2.0.114",
 "unicode-ident",
 ]

@@ -3203,7 +3262,7 @@ checksum = "b3a8fb4672e840a587a66fc577a5491375df51ddb88f2a2c2a792598c326fe14"
 dependencies = [
 "quote",
 "rand 0.8.5",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -3236,7 +3295,7 @@ dependencies = [
 "proc-macro2",
 "quote",
 "rust-embed-utils",
- "syn 2.0.112",
+ "syn 2.0.114",
 "walkdir",
 ]

@@ -3273,7 +3332,7 @@ dependencies = [

 [[package]]
 name = "rustical"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "anyhow",
 "argon2",
@@ -3284,6 +3343,7 @@ dependencies = [
 "figment",
 "headers",
 "http",
+ "ical 0.11.0 (git+https://github.com/lennart-k/ical-rs?branch=dev)",
 "insta",
 "opentelemetry",
 "opentelemetry-otlp",
@@ -3306,7 +3366,7 @@ dependencies = [
 "serde",
 "sqlx",
 "tokio",
- "toml 0.9.10+spec-1.1.0",
+ "toml 0.9.11+spec-1.1.0",
 "tower",
 "tower-http",
 "tower-sessions",
@@ -3318,7 +3378,7 @@ dependencies = [

 [[package]]
 name = "rustical_caldav"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "async-std",
 "async-trait",
@@ -3331,7 +3391,7 @@ dependencies = [
 "futures-util",
 "headers",
 "http",
- "ical",
+ "ical 0.11.0 (git+https://github.com/lennart-k/ical-rs?rev=7c2ab1f3)",
 "insta",
 "percent-encoding",
 "quick-xml",
@@ -3360,7 +3420,7 @@ dependencies = [

 [[package]]
 name = "rustical_carddav"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "async-trait",
 "axum",
@@ -3370,7 +3430,7 @@ dependencies = [
 "derive_more",
 "futures-util",
 "http",
- "ical",
+ "ical 0.11.0 (git+https://github.com/lennart-k/ical-rs?rev=7c2ab1f3)",
 "insta",
 "percent-encoding",
 "quick-xml",
@@ -3394,7 +3454,7 @@ dependencies = [

 [[package]]
 name = "rustical_dav"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "async-trait",
 "axum",
@@ -3403,7 +3463,7 @@ dependencies = [
 "futures-util",
 "headers",
 "http",
- "ical",
+ "ical 0.11.0 (git+https://github.com/lennart-k/ical-rs?rev=7c2ab1f3)",
 "itertools 0.14.0",
 "log",
 "matchit 0.9.1",
@@ -3420,7 +3480,7 @@ dependencies = [

 [[package]]
 name = "rustical_dav_push"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "async-trait",
 "axum",
@@ -3445,7 +3505,7 @@ dependencies = [

 [[package]]
 name = "rustical_frontend"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "askama",
 "askama_web",
@@ -3481,24 +3541,26 @@ dependencies = [

 [[package]]
 name = "rustical_ical"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "axum",
 "chrono",
 "chrono-tz",
 "derive_more",
- "ical",
+ "ical 0.11.0 (git+https://github.com/lennart-k/ical-rs?rev=7c2ab1f3)",
 "regex",
 "rrule",
+ "rstest",
 "rustical_xml",
 "serde",
 "sha2",
+ "similar-asserts",
 "thiserror 2.0.17",
 ]

 [[package]]
 name = "rustical_oidc"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "async-trait",
 "axum",
@@ -3514,7 +3576,7 @@ dependencies = [

 [[package]]
 name = "rustical_store"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "anyhow",
 "async-trait",
@@ -3526,7 +3588,7 @@ dependencies = [
 "futures-core",
 "headers",
 "http",
- "ical",
+ "ical 0.11.0 (git+https://github.com/lennart-k/ical-rs?rev=7c2ab1f3)",
 "regex",
 "rrule",
 "rstest",
@@ -3547,7 +3609,7 @@ dependencies = [

 [[package]]
 name = "rustical_store_sqlite"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "async-trait",
 "chrono",
@@ -3556,6 +3618,7 @@ dependencies = [
 "password-auth",
 "password-hash",
 "pbkdf2",
+ "regex",
 "rstest",
 "rustical_ical",
 "rustical_store",
@@ -3570,7 +3633,7 @@ dependencies = [

 [[package]]
 name = "rustical_xml"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "quick-xml",
 "thiserror 2.0.17",
@@ -3592,9 +3655,9 @@ dependencies = [

 [[package]]
 name = "rustls"
-version = "0.23.35"
+version = "0.23.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "533f54bc6a7d4f647e46ad909549eda97bf5afc1585190ef692b4286b198bd8f"
+checksum = "c665f33d38cea657d9614f766881e4d510e0eda4239891eea56b4cadcf01801b"
 dependencies = [
 "once_cell",
 "ring",
@@ -3733,14 +3796,14 @@ checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
 name = "serde_json"
-version = "1.0.148"
+version = "1.0.149"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3084b546a1dd6289475996f182a22aba973866ea8e8b02c51d9f46b1336a22da"
+checksum = "83fc039473c5595ace860d8c4fafa220ff474b3fc6bfdb4293327f1a37e94d86"
 dependencies = [
 "itoa",
 "memchr",
@@ -3809,7 +3872,7 @@ dependencies = [
 "chrono",
 "hex",
 "indexmap 1.9.3",
- "indexmap 2.12.1",
+ "indexmap 2.13.0",
 "schemars 0.9.0",
 "schemars 1.2.0",
 "serde_core",
@@ -3827,7 +3890,7 @@ dependencies = [
 "darling 0.21.3",
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -3989,7 +4052,7 @@ dependencies = [
 "futures-util",
 "hashbrown 0.15.5",
 "hashlink",
- "indexmap 2.12.1",
+ "indexmap 2.13.0",
 "log",
 "memchr",
 "once_cell",
@@ -4016,7 +4079,7 @@ dependencies = [
 "quote",
 "sqlx-core",
 "sqlx-macros-core",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -4039,7 +4102,7 @@ dependencies = [
 "sqlx-mysql",
 "sqlx-postgres",
 "sqlx-sqlite",
- "syn 2.0.112",
+ "syn 2.0.114",
 "tokio",
 "url",
 ]
@@ -4191,7 +4254,7 @@ dependencies = [
 "heck",
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -4213,9 +4276,9 @@ dependencies = [

 [[package]]
 name = "syn"
-version = "2.0.112"
+version = "2.0.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21f182278bf2d2bcb3c88b1b08a37df029d71ce3d3ae26168e3c653b213b99d4"
+checksum = "d4d107df263a3013ef9b1879b0df87d706ff80f65a86ea879bd9c31f9b307c2a"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -4239,7 +4302,7 @@ checksum = "728a70f3dbaf5bab7f0c4b1ac8d7ae5ea60a4b5549c8a5914361c99147a709d2"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -4281,7 +4344,7 @@ checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -4292,7 +4355,7 @@ checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -4372,9 +4435,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"

 [[package]]
 name = "tokio"
-version = "1.48.0"
+version = "1.49.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ff360e02eab121e0bc37a2d3b4d4dc622e6eda3a8e5253d5435ecf5bd4c68408"
+checksum = "72a2903cd7736441aac9df9d7688bd0ce48edccaadf181c3b90be801e81d3d86"
 dependencies = [
 "bytes",
 "libc",
@@ -4396,7 +4459,7 @@ checksum = "af407857209536a95c8e56f8231ef2c2e2aff839b22e07a1ffcbc617e9db9fa5"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -4411,9 +4474,9 @@ dependencies = [

 [[package]]
 name = "tokio-stream"
-version = "0.1.17"
+version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eca58d7bba4a75707817a2c44174253f9236b2d5fbd055602e9d5c07c139a047"
+checksum = "32da49809aab5c3bc678af03902d4ccddea2a87d028d86392a4b1560c6906c70"
 dependencies = [
 "futures-core",
 "pin-project-lite",
@@ -4422,9 +4485,9 @@ dependencies = [

 [[package]]
 name = "tokio-util"
-version = "0.7.17"
+version = "0.7.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2efa149fe76073d6e8fd97ef4f4eca7b67f599660115591483572e406e165594"
+checksum = "9ae9cec805b01e8fc3fd2fe289f89149a9b66dd16786abd8b19cfa7b48cb0098"
 dependencies = [
 "bytes",
 "futures-core",
@@ -4447,11 +4510,11 @@ dependencies = [

 [[package]]
 name = "toml"
-version = "0.9.10+spec-1.1.0"
+version = "0.9.11+spec-1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0825052159284a1a8b4d6c0c86cbc801f2da5afd2b225fa548c72f2e74002f48"
+checksum = "f3afc9a848309fe1aaffaed6e1546a7a14de1f935dc9d89d32afd9a44bab7c46"
 dependencies = [
- "indexmap 2.12.1",
+ "indexmap 2.13.0",
 "serde_core",
 "serde_spanned 1.0.4",
 "toml_datetime 0.7.5+spec-1.1.0",
@@ -4484,7 +4547,7 @@ version = "0.22.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41fe8c660ae4257887cf66394862d21dbca4a6ddd26f04a3560410406a2f819a"
 dependencies = [
- "indexmap 2.12.1",
+ "indexmap 2.13.0",
 "serde",
 "serde_spanned 0.6.9",
 "toml_datetime 0.6.11",
@@ -4498,7 +4561,7 @@ version = "0.23.10+spec-1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "84c8b9f757e028cee9fa244aea147aab2a9ec09d5325a9b01e0a49730c2b5269"
 dependencies = [
- "indexmap 2.12.1",
+ "indexmap 2.13.0",
 "toml_datetime 0.7.5+spec-1.1.0",
 "toml_parser",
 "winnow",
@@ -4570,7 +4633,7 @@ checksum = "d039ad9159c98b70ecfd540b2573b97f7f52c3e8d9f8ad57a24b916a536975f9"
 dependencies = [
 "futures-core",
 "futures-util",
- "indexmap 2.12.1",
+ "indexmap 2.13.0",
 "pin-project-lite",
 "slab",
 "sync_wrapper",
@@ -4708,7 +4771,7 @@ checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -4792,9 +4855,9 @@ dependencies = [

 [[package]]
 name = "unicase"
-version = "2.8.1"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75b844d17643ee918803943289730bec8aac480150456169e647ed0b576ba539"
+checksum = "dbc4bc3a9f746d862c45cb89d705aa10f187bb96c76001afab07a0d35ce60142"

 [[package]]
 name = "unicode-bidi"
@@ -4843,14 +4906,15 @@ checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"

 [[package]]
 name = "url"
-version = "2.5.7"
+version = "2.5.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08bc136a29a3d1758e07a9cca267be308aeebf5cfd5a10f3f67ab2097683ef5b"
+checksum = "ff67a8a4397373c3ef660812acab3268222035010ab8680ec4215f38ba3d0eed"
 dependencies = [
 "form_urlencoded",
 "idna",
 "percent-encoding",
 "serde",
+ "serde_derive",
 ]

 [[package]]
@@ -4908,7 +4972,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f6728de8767c8dea44f41b88115a205ed23adc3302e1b4342be59d922934dae5"
 dependencies = [
 "glob",
- "phf",
+ "phf 0.12.1",
 "phf_codegen",
 ]

@@ -4997,7 +5061,7 @@ dependencies = [
 "bumpalo",
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 "wasm-bindgen-shared",
 ]

@@ -5032,9 +5096,9 @@ dependencies = [

 [[package]]
 name = "webpki-roots"
-version = "1.0.4"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2878ef029c47c6e8cf779119f20fcf52bde7ad42a731b2a304bc221df17571e"
+checksum = "12bed680863276c63889429bfd6cab3b99943659923822de1c8a39c49e4d722c"
 dependencies = [
 "rustls-pki-types",
 ]
@@ -5101,7 +5165,7 @@ checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -5112,7 +5176,7 @@ checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -5393,14 +5457,14 @@ checksum = "9edde0db4769d2dc68579893f2306b26c6ecfbe0ef499b013d731b7b9247e0b9"

 [[package]]
 name = "xml_derive"
-version = "0.11.9"
+version = "0.11.15"
 dependencies = [
 "darling 0.23.0",
 "heck",
 "itertools 0.14.0",
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -5428,28 +5492,28 @@ checksum = "b659052874eb698efe5b9e8cf382204678a0086ebf46982b79d6ca3182927e5d"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 "synstructure",
 ]

 [[package]]
 name = "zerocopy"
-version = "0.8.31"
+version = "0.8.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd74ec98b9250adb3ca554bdde269adf631549f51d8a8f8f0a10b50f1cb298c3"
+checksum = "668f5168d10b9ee831de31933dc111a459c97ec93225beb307aed970d1372dfd"
 dependencies = [
 "zerocopy-derive",
 ]

 [[package]]
 name = "zerocopy-derive"
-version = "0.8.31"
+version = "0.8.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8a8d209fdf45cf5138cbb5a506f6b52522a25afccc534d1475dad8e31105c6a"
+checksum = "2c7962b26b0a8685668b671ee4b54d007a67d4eaf05fda79ac0ecf41e32270f1"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
@@ -5469,7 +5533,7 @@ checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 "synstructure",
 ]

@@ -5509,11 +5573,11 @@ checksum = "eadce39539ca5cb3985590102671f2567e659fca9666581ad3411d59207951f3"
 dependencies = [
 "proc-macro2",
 "quote",
- "syn 2.0.112",
+ "syn 2.0.114",
 ]

 [[package]]
 name = "zmij"
-version = "1.0.5"
+version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3280a1b827474fcd5dbef4b35a674deb52ba5c312363aef9135317df179d81b"
+checksum = "2fc5a66a20078bf1251bde995aa2fdcc4b800c70b5d92dd2c62abc5c60f679f8"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 members = ["crates/*"]

 [workspace.package]
-version = "0.11.9"
+version = "0.11.15"
 rust-version = "1.92"
 edition = "2024"
 description = "A CalDAV server"
@@ -107,9 +107,7 @@ strum = "0.27"
 strum_macros = "0.27"
 serde_json = { version = "1.0", features = ["raw_value"] }
 sqlx-sqlite = { version = "0.8", features = ["bundled"] }
-ical = { git = "https://github.com/lennart-k/ical-rs", features = [
-  "chrono-tz",
-] }
+ical = { git = "https://github.com/lennart-k/ical-rs", rev = "7c2ab1f3" }
 toml = "0.9"
 tower = "0.5"
 tower-http = { version = "0.6", features = [
@@ -201,3 +199,7 @@ tower-http.workspace = true
 axum-extra.workspace = true
 headers.workspace = true
 http.workspace = true
+# TODO: Remove in next major release
+ical_dev = { package = "ical", git = "https://github.com/lennart-k/ical-rs", branch = "dev", features = [
+  "chrono-tz",
+] }
--- a/crates/caldav/src/calendar/methods/mkcalendar.rs
+++ b/crates/caldav/src/calendar/methods/mkcalendar.rs
@@ -90,14 +90,14 @@ pub async fn route_mkcalendar<C: CalendarStore, S: SubscriptionStore>(
        let calendar = IcalParser::new(tz.as_bytes())
            .next()
            .ok_or_else(|| rustical_dav::Error::BadRequest("No timezone data provided".to_owned()))?
-            .map_err(|_| rustical_dav::Error::BadRequest("No timezone data provided".to_owned()))?;
+            .map_err(|_| rustical_dav::Error::BadRequest("Error parsing timezone".to_owned()))?;

        let timezone = calendar.timezones.first().ok_or_else(|| {
            rustical_dav::Error::BadRequest("No timezone data provided".to_owned())
        })?;
-        let timezone: chrono_tz::Tz = timezone
-            .try_into()
-            .map_err(|_| rustical_dav::Error::BadRequest("No timezone data provided".to_owned()))?;
+        let timezone: chrono_tz::Tz = timezone.try_into().map_err(|_| {
+            rustical_dav::Error::BadRequest("Cannot translate VTIMEZONE into IANA TZID".to_owned())
+        })?;

        Some(timezone.name().to_owned())
    } else {
--- a/crates/caldav/src/calendar/methods/report/mod.rs
+++ b/crates/caldav/src/calendar/methods/report/mod.rs
@@ -174,7 +174,7 @@ mod tests {
                prop: rustical_dav::xml::PropfindType::Prop(PropElement(vec![
                    CalendarObjectPropWrapperName::CalendarObject(CalendarObjectPropName::Getetag),
                    CalendarObjectPropWrapperName::CalendarObject(CalendarObjectPropName::CalendarData(
-                        CalendarData { comp: None, expand: Some(ExpandElement {
+                        CalendarData { comp: None, prop: None, expand: Some(ExpandElement {
                        start: <UtcDateTime as ValueDeserialize>::deserialize("20250426T220000Z").unwrap(),
                        end: <UtcDateTime as ValueDeserialize>::deserialize("20250503T220000Z").unwrap(),
                    }), limit_recurrence_set: None, limit_freebusy_set: None }
--- a/crates/caldav/src/calendar/resource.rs
+++ b/crates/caldav/src/calendar/resource.rs
@@ -42,7 +42,7 @@ pub enum CalendarProp {
    SupportedCalendarData(SupportedCalendarData),
    #[xml(ns = "rustical_dav::namespace::NS_CALDAV", skip_deserializing)]
    SupportedCollationSet(SupportedCollationSet),
-    #[xml(ns = "rustical_dav::namespace::NS_DAV")]
+    #[xml(ns = "rustical_dav::namespace::NS_CALDAV")]
    MaxResourceSize(i64),
    #[xml(skip_deserializing)]
    #[xml(ns = "rustical_dav::namespace::NS_DAV")]
--- a/crates/caldav/src/calendar/snapshots/rustical_caldavcalendartests__propfind-2.snap
+++ b/crates/caldav/src/calendar/snapshots/rustical_caldavcalendartests__propfind-2.snap
@@ -135,7 +135,7 @@ END:VCALENDAR
                <supported-collation xmlns="urn:ietf:params:xml:ns:caldav">i;unicode-casemap</supported-collation>
                <supported-collation xmlns="urn:ietf:params:xml:ns:caldav">i;octet</supported-collation>
            </supported-collation-set>
-            <max-resource-size xmlns="DAV:">10000000</max-resource-size>
+            <max-resource-size xmlns="urn:ietf:params:xml:ns:caldav">10000000</max-resource-size>
            <supported-report-set xmlns="DAV:">
                <supported-report xmlns="DAV:">
                    <report xmlns="DAV:">
--- a/crates/caldav/src/calendar/snapshots/rustical_caldavcalendartests__propfind.snap
+++ b/crates/caldav/src/calendar/snapshots/rustical_caldavcalendartests__propfind.snap
@@ -16,7 +16,7 @@ expression: output
            <supported-calendar-component-set xmlns="urn:ietf:params:xml:ns:caldav"/>
            <supported-calendar-data xmlns="urn:ietf:params:xml:ns:caldav"/>
            <supported-collation-set xmlns="urn:ietf:params:xml:ns:caldav"/>
-            <max-resource-size xmlns="DAV:"/>
+            <max-resource-size xmlns="urn:ietf:params:xml:ns:caldav"/>
            <supported-report-set xmlns="DAV:"/>
            <source xmlns="http://calendarserver.org/ns/"/>
            <min-date-time xmlns="urn:ietf:params:xml:ns:caldav"/>
--- a/crates/caldav/src/calendar_object/methods.rs
+++ b/crates/caldav/src/calendar_object/methods.rs
@@ -6,7 +6,7 @@ use axum::extract::{Path, State};
 use axum::response::{IntoResponse, Response};
 use axum_extra::TypedHeader;
 use headers::{ContentType, ETag, HeaderMapExt, IfNoneMatch};
-use http::{HeaderMap, Method, StatusCode};
+use http::{HeaderMap, HeaderValue, Method, StatusCode};
 use rustical_ical::CalendarObject;
 use rustical_store::CalendarStore;
 use rustical_store::auth::Principal;
@@ -73,7 +73,23 @@ pub async fn put_event<C: CalendarStore>(
    }

    let overwrite = if let Some(TypedHeader(if_none_match)) = if_none_match {
-        if_none_match == IfNoneMatch::any()
+        // TODO: Put into transaction?
+        let existing = match cal_store
+            .get_object(&principal, &calendar_id, &object_id, false)
+            .await
+        {
+            Ok(existing) => Some(existing),
+            Err(rustical_store::Error::NotFound) => None,
+            Err(err) => Err(err)?,
+        };
+        existing.is_none_or(|existing| {
+            if_none_match.precondition_passes(
+                &existing
+                    .get_etag()
+                    .parse()
+                    .expect("We only generate valid ETags"),
+            )
+        })
    } else {
        true
    };
@@ -82,9 +98,15 @@ pub async fn put_event<C: CalendarStore>(
        debug!("invalid calendar data:\n{body}");
        return Err(Error::PreconditionFailed(Precondition::ValidCalendarData));
    };
+    let etag = object.get_etag();
    cal_store
        .put_object(principal, calendar_id, object, overwrite)
        .await?;

-    Ok(StatusCode::CREATED.into_response())
+    let mut headers = HeaderMap::new();
+    headers.insert(
+        "ETag",
+        HeaderValue::from_str(&etag).expect("Contains no invalid characters"),
+    );
+    Ok((StatusCode::CREATED, headers).into_response())
 }
--- a/crates/caldav/src/calendar_object/prop.rs
+++ b/crates/caldav/src/calendar_object/prop.rs
@@ -1,6 +1,6 @@
 use rustical_dav::extensions::CommonPropertiesProp;
 use rustical_ical::UtcDateTime;
-use rustical_xml::{EnumVariants, PropName, XmlDeserialize, XmlSerialize};
+use rustical_xml::{EnumVariants, PropName, Unparsed, XmlDeserialize, XmlSerialize};

 #[derive(XmlDeserialize, XmlSerialize, PartialEq, Eq, Clone, EnumVariants, PropName)]
 #[xml(unit_variants_ident = "CalendarObjectPropName")]
@@ -35,7 +35,9 @@ pub struct ExpandElement {
 #[derive(XmlDeserialize, Clone, Debug, PartialEq, Default, Eq, Hash)]
 pub struct CalendarData {
    #[xml(ns = "rustical_dav::namespace::NS_CALDAV")]
-    pub(crate) comp: Option<()>,
+    pub(crate) comp: Option<Unparsed>,
+    #[xml(ns = "rustical_dav::namespace::NS_CALDAV")]
+    pub(crate) prop: Option<Unparsed>,
    #[xml(ns = "rustical_dav::namespace::NS_CALDAV")]
    pub(crate) expand: Option<ExpandElement>,
    #[xml(ns = "rustical_dav::namespace::NS_CALDAV")]
--- a/crates/carddav/src/address_object/methods.rs
+++ b/crates/carddav/src/address_object/methods.rs
@@ -7,6 +7,7 @@ use axum::extract::{Path, State};
 use axum::response::{IntoResponse, Response};
 use axum_extra::TypedHeader;
 use axum_extra::headers::{ContentType, ETag, HeaderMapExt, IfNoneMatch};
+use http::HeaderValue;
 use http::Method;
 use http::{HeaderMap, StatusCode};
 use rustical_dav::privileges::UserPrivilege;
@@ -81,15 +82,37 @@ pub async fn put_object<AS: AddressbookStore>(
    }

    let overwrite = if let Some(TypedHeader(if_none_match)) = if_none_match {
-        if_none_match == IfNoneMatch::any()
+        // TODO: Put into transaction?
+        let existing = match addr_store
+            .get_object(&principal, &addressbook_id, &object_id, false)
+            .await
+        {
+            Ok(existing) => Some(existing),
+            Err(rustical_store::Error::NotFound) => None,
+            Err(err) => Err(err)?,
+        };
+        existing.is_none_or(|existing| {
+            if_none_match.precondition_passes(
+                &existing
+                    .get_etag()
+                    .parse()
+                    .expect("We only generate valid ETags"),
+            )
+        })
    } else {
        true
    };

    let object = AddressObject::from_vcf(object_id, body)?;
+    let etag = object.get_etag();
    addr_store
        .put_object(principal, addressbook_id, object, overwrite)
        .await?;

-    Ok(StatusCode::CREATED.into_response())
+    let mut headers = HeaderMap::new();
+    headers.insert(
+        "ETag",
+        HeaderValue::from_str(&etag).expect("Contains no invalid characters"),
+    );
+    Ok((StatusCode::CREATED, headers).into_response())
 }
--- a/crates/carddav/src/addressbook/methods/report/addressbook_query/elements.rs
+++ b/crates/carddav/src/addressbook/methods/report/addressbook_query/elements.rs
@@ -82,6 +82,11 @@ pub struct FilterElement {
 impl FilterElement {
    #[must_use]
    pub fn matches(&self, addr_object: &AddressObject) -> bool {
+        if self.prop_filter.is_empty() {
+            // Filter empty
+            return true;
+        }
+
        let Allof(allof) = self.test;
        let mut results = self
            .prop_filter
--- a/crates/carddav/src/addressbook/methods/report/addressbook_query/prop_filter.rs
+++ b/crates/carddav/src/addressbook/methods/report/addressbook_query/prop_filter.rs
@@ -32,6 +32,10 @@ pub struct PropFilterElement {
 impl PropFilterElement {
    #[must_use]
    pub fn match_property(&self, property: &Property) -> bool {
+        if self.param_filter.is_empty() && self.text_match.is_empty() {
+            // Filter empty
+            return true;
+        }
        let Allof(allof) = self.test;
        let text_matches = self
            .text_match
--- a/crates/dav/src/resource/methods/delete.rs
+++ b/crates/dav/src/resource/methods/delete.rs
@@ -52,12 +52,12 @@ pub async fn route_delete<R: ResourceService>(
        return Err(Error::Unauthorized.into());
    }

-    if let Some(if_match) = if_match {
-        if !resource.satisfies_if_match(&if_match) {
+    if let Some(if_match) = if_match
+        && !resource.satisfies_if_match(&if_match)
+    {
        // Precondition failed
        return Err(crate::Error::PreconditionFailed.into());
    }
-    }
    if let Some(if_none_match) = if_none_match
        && resource.satisfies_if_none_match(&if_none_match)
    {
--- a/crates/ical/Cargo.toml
+++ b/crates/ical/Cargo.toml
@@ -21,3 +21,5 @@ rrule.workspace = true
 serde.workspace = true
 sha2.workspace = true
 axum.workspace = true
+rstest.workspace = true
+similar-asserts.workspace = true
--- a/crates/ical/src/icalendar/event.rs
+++ b/crates/ical/src/icalendar/event.rs
@@ -67,6 +67,8 @@ impl EventObject {
        };

        let mut rrule_set = RRuleSet::new(dtstart);
+        // TODO: Make nice, this is just a bodge to get correct behaviour
+        let mut empty = true;

        for prop in &self.event.properties {
            rrule_set = match prop.name.as_str() {
@@ -76,49 +78,63 @@ impl EventObject {
                    })?)?
                    .validate(dtstart)
                    .unwrap();
+                    empty = false;
                    rrule_set.rrule(rrule)
                }
                "RDATE" => {
                    let rdate = CalDateTime::parse_prop(prop, &self.timezones)?.into();
+                    empty = false;
                    rrule_set.rdate(rdate)
                }
                "EXDATE" => {
                    let exdate = CalDateTime::parse_prop(prop, &self.timezones)?.into();
+                    empty = false;
                    rrule_set.exdate(exdate)
                }
                _ => rrule_set,
            }
        }
+        if empty {
+            return Ok(None);
+        }

        Ok(Some(rrule_set))
    }

+    // The returned calendar components MUST NOT use recurrence
+    // properties (i.e., EXDATE, EXRULE, RDATE, and RRULE) and MUST NOT
+    // have reference to or include VTIMEZONE components.  Date and local
+    // time with reference to time zone information MUST be converted
+    // into date with UTC time.
    pub fn expand_recurrence(
        &self,
        start: Option<DateTime<Utc>>,
        end: Option<DateTime<Utc>>,
        overrides: &[Self],
    ) -> Result<Vec<IcalEvent>, Error> {
-        let Some(mut rrule_set) = self.recurrence_ruleset()? else {
-            return Ok(vec![self.event.clone()]);
-        };
+        let mut events = vec![];
+        let dtstart = self.get_dtstart()?.expect("We must have a DTSTART here");
+        let computed_duration = self
+            .get_dtend()?
+            .map(|dtend| dtend.as_datetime().into_owned() - dtstart.as_datetime().as_ref());

+        let Some(mut rrule_set) = self.recurrence_ruleset()? else {
+            // If ruleset empty simply return main event AND all overrides
+            return Ok(std::iter::once(self.clone())
+                .chain(overrides.iter().cloned())
+                .map(|event| event.event)
+                .collect());
+        };
        if let Some(start) = start {
            rrule_set = rrule_set.after(start.with_timezone(&rrule::Tz::UTC));
        }
        if let Some(end) = end {
            rrule_set = rrule_set.before(end.with_timezone(&rrule::Tz::UTC));
        }
-        let mut events = vec![];
        let dates = rrule_set.all(2048).dates;
-        let dtstart = self.get_dtstart()?.expect("We must have a DTSTART here");
-        let computed_duration = self
-            .get_dtend()?
-            .map(|dtend| dtend.as_datetime().into_owned() - dtstart.as_datetime().as_ref());
-
        'recurrence: for date in dates {
-            let date = CalDateTime::from(date);
-            let dateformat = if dtstart.is_date() {
+            let date = CalDateTime::from(date.to_utc());
+            let recurrence_id = if dtstart.is_date() {
                date.format_date()
            } else {
                date.format()
@@ -131,7 +147,7 @@ impl EventObject {
                    .as_ref()
                    .expect("overrides have a recurrence id")
                    .value
-                    && override_id == &dateformat
+                    && override_id == &recurrence_id
                {
                    // We have an override for this occurence
                    //
@@ -154,13 +170,13 @@ impl EventObject {

            ev.set_property(Property {
                name: "RECURRENCE-ID".to_string(),
-                value: Some(dateformat.clone()),
+                value: Some(recurrence_id.clone()),
                params: vec![],
            });
            ev.set_property(Property {
                name: "DTSTART".to_string(),
-                value: Some(dateformat),
-                params: dtstart_prop.params.clone(),
+                value: Some(recurrence_id),
+                params: vec![],
            });
            if let Some(duration) = computed_duration {
                let dtend = date + duration;
@@ -183,10 +199,12 @@ impl EventObject {

 #[cfg(test)]
 mod tests {
-    use crate::CalendarObject;
+    use crate::{CalDateTime, CalendarObject};
+    use chrono::{DateTime, Utc};
    use ical::generator::Emitter;
+    use rstest::rstest;

-    const ICS: &str = r"BEGIN:VCALENDAR
+    const ICS_1: &str = r"BEGIN:VCALENDAR
 CALSCALE:GREGORIAN
 VERSION:2.0
 BEGIN:VTIMEZONE
@@ -206,16 +224,16 @@ RRULE:FREQ=WEEKLY;COUNT=4;INTERVAL=2;BYDAY=TU,TH,SU
 END:VEVENT
 END:VCALENDAR";

-    const EXPANDED: [&str; 4] = [
+    const EXPANDED_1: &[&str] = &[
        "BEGIN:VEVENT\r
 UID:318ec6503573d9576818daf93dac07317058d95c\r
 DTSTAMP:20250502T132758Z\r
 SEQUENCE:2\r
 SUMMARY:weekly stuff\r
 TRANSP:OPAQUE\r
-RECURRENCE-ID:20250506T090000\r
-DTSTART;TZID=Europe/Berlin:20250506T090000\r
-DTEND;TZID=Europe/Berlin:20250506T092500\r
+RECURRENCE-ID:20250506T070000Z\r
+DTSTART:20250506T070000Z\r
+DTEND:20250506T072500Z\r
 END:VEVENT\r\n",
        "BEGIN:VEVENT\r
 UID:318ec6503573d9576818daf93dac07317058d95c\r
@@ -223,9 +241,9 @@ DTSTAMP:20250502T132758Z\r
 SEQUENCE:2\r
 SUMMARY:weekly stuff\r
 TRANSP:OPAQUE\r
-RECURRENCE-ID:20250508T090000\r
-DTSTART;TZID=Europe/Berlin:20250508T090000\r
-DTEND;TZID=Europe/Berlin:20250508T092500\r
+RECURRENCE-ID:20250508T070000Z\r
+DTSTART:20250508T070000Z\r
+DTEND:20250508T072500Z\r
 END:VEVENT\r\n",
        "BEGIN:VEVENT\r
 UID:318ec6503573d9576818daf93dac07317058d95c\r
@@ -234,8 +252,8 @@ SEQUENCE:2\r
 SUMMARY:weekly stuff\r
 TRANSP:OPAQUE\r
 RECURRENCE-ID:20250511T090000\r
-DTSTART;TZID=Europe/Berlin:20250511T090000\r
-DTEND;TZID=Europe/Berlin:20250511T092500\r
+DTSTART:20250511T070000Z\r
+DTEND:20250511T072500Z\r
 END:VEVENT\r\n",
        "BEGIN:VEVENT\r
 UID:318ec6503573d9576818daf93dac07317058d95c\r
@@ -244,25 +262,124 @@ SEQUENCE:2\r
 SUMMARY:weekly stuff\r
 TRANSP:OPAQUE\r
 RECURRENCE-ID:20250520T090000\r
-DTSTART;TZID=Europe/Berlin:20250520T090000\r
-DTEND;TZID=Europe/Berlin:20250520T092500\r
+DTSTA:20250520T070000Z\r
+DTEND:20250520T072500Z\r
 END:VEVENT\r\n",
    ];

-    #[test]
-    fn test_expand_recurrence() {
-        let event = CalendarObject::from_ics(ICS.to_string(), None).unwrap();
+    const ICS_2: &str = r"BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:US/Eastern
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060102T120000
+DURATION:PT1H
+RRULE:FREQ=DAILY;COUNT=5
+SUMMARY:Event #2
+UID:abcd2
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060104T140000
+DURATION:PT1H
+RECURRENCE-ID;TZID=US/Eastern:20060104T120000
+SUMMARY:Event #2 bis
+UID:abcd2
+END:VEVENT
+END:VCALENDAR
+";
+
+    const EXPANDED_2: &[&str] = &[
+        "BEGIN:VEVENT\r
+DTSTAMP:20060206T001121Z\r
+DURATION:PT1H\r
+SUMMARY:Event #2\r
+UID:abcd2\r
+RECURRENCE-ID:20060103T170000\r
+DTSTART:20060103T170000\r
+END:VEVENT\r\n",
+        "BEGIN:VEVENT\r
+DTSTAMP:20060206T001121Z\r
+DURATION:PT1H\r
+SUMMARY:Event #2 bis\r
+UID:abcd2\r
+RECURRENCE-ID:20060104T170000\r
+DTSTART:20060104T190000\r
+END:VEVENT\r
+END:VCALENDAR\r\n",
+    ];
+
+    const ICS_3: &str = r"BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:US/Eastern
+END:VTIMEZONE
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART;TZID=US/Eastern:20060104T100000
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:abcd3
+END:VEVENT
+END:VCALENDAR
+";
+
+    const EXPANDED_3: &[&str] = &["BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART:20060104T150000
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:abcd3
+X-ABC-GUID:E1CX5Dr-0007ym-Hz@example.com
+END:VEVENT"];
+
+    #[rstest]
+    #[case(ICS_1, EXPANDED_1, None, None)]
+    // from https://datatracker.ietf.org/doc/html/rfc4791#section-7.8.3
+    #[case(ICS_2, EXPANDED_2,
+        Some(CalDateTime::parse("20060103T000000Z", Some(chrono_tz::US::Eastern)).unwrap().utc()),
+        Some(CalDateTime::parse("20060105T000000Z", Some(chrono_tz::US::Eastern)).unwrap().utc())
+    )]
+    #[case(ICS_3, EXPANDED_3,
+        Some(CalDateTime::parse("20060103T000000Z", Some(chrono_tz::US::Eastern)).unwrap().utc()),
+        Some(CalDateTime::parse("20060105T000000Z", Some(chrono_tz::US::Eastern)).unwrap().utc())
+    )]
+    fn test_expand_recurrence(
+        #[case] ics: &'static str,
+        #[case] expanded: &[&str],
+        #[case] from: Option<DateTime<Utc>>,
+        #[case] to: Option<DateTime<Utc>>,
+    ) {
+        let event = CalendarObject::from_ics(ics.to_string(), None).unwrap();
        let crate::CalendarObjectComponent::Event(event, overrides) = event.get_data() else {
            panic!()
        };

        let events: Vec<String> = event
-            .expand_recurrence(None, None, overrides)
+            .expand_recurrence(from, to, overrides)
            .unwrap()
            .into_iter()
            .map(|event| Emitter::generate(&event))
            .collect();
-        assert_eq!(events.as_slice()[0], EXPANDED[0]);
-        assert_eq!(events.as_slice(), &EXPANDED);
+        assert_eq!(events.len(), expanded.len());
+        for (output, reference) in events.iter().zip(expanded) {
+            similar_asserts::assert_eq!(output, reference);
+        }
    }
 }
--- a/crates/ical/src/icalendar/object.rs
+++ b/crates/ical/src/icalendar/object.rs
@@ -89,10 +89,19 @@ impl From<&CalendarObjectComponent> for CalendarObjectType {

 impl CalendarObjectComponent {
    fn from_events(mut events: Vec<EventObject>) -> Result<Self, Error> {
-        let main_event = events
+        // A calendar object does not necessarily have to contain a main VOBJECT
+        if events.is_empty() {
+            return Err(Error::MissingCalendar);
+        }
+        #[allow(clippy::option_if_let_else)]
+        let main_event = if let Some(main) = events
            .extract_if(.., |event| event.event.get_recurrence_id().is_none())
            .next()
-            .expect("there must be one main event");
+        {
+            main
+        } else {
+            events.remove(0)
+        };
        let overrides = events;
        for event in &overrides {
            if event.get_uid() != main_event.get_uid() {
@@ -109,10 +118,19 @@ impl CalendarObjectComponent {
        Ok(Self::Event(main_event, overrides))
    }
    fn from_todos(mut todos: Vec<IcalTodo>) -> Result<Self, Error> {
-        let main_todo = todos
+        // A calendar object does not necessarily have to contain a main VOBJECT
+        if todos.is_empty() {
+            return Err(Error::MissingCalendar);
+        }
+        #[allow(clippy::option_if_let_else)]
+        let main_todo = if let Some(main) = todos
            .extract_if(.., |todo| todo.get_recurrence_id().is_none())
            .next()
-            .expect("there must be one main event");
+        {
+            main
+        } else {
+            todos.remove(0)
+        };
        let overrides = todos;
        for todo in &overrides {
            if todo.get_uid() != main_todo.get_uid() {
@@ -129,10 +147,19 @@ impl CalendarObjectComponent {
        Ok(Self::Todo(main_todo, overrides))
    }
    fn from_journals(mut journals: Vec<IcalJournal>) -> Result<Self, Error> {
-        let main_journal = journals
+        // A calendar object does not necessarily have to contain a main VOBJECT
+        if journals.is_empty() {
+            return Err(Error::MissingCalendar);
+        }
+        #[allow(clippy::option_if_let_else)]
+        let main_journal = if let Some(main) = journals
            .extract_if(.., |journal| journal.get_recurrence_id().is_none())
            .next()
-            .expect("there must be one main event");
+        {
+            main
+        } else {
+            journals.remove(0)
+        };
        let overrides = journals;
        for journal in &overrides {
            if journal.get_uid() != main_journal.get_uid() {
--- a/crates/ical/src/timestamp.rs
+++ b/crates/ical/src/timestamp.rs
@@ -198,6 +198,14 @@ impl CalDateTime {
        }
    }

+    #[must_use]
+    pub fn with_timezone(&self, tz: &ICalTimezone) -> Self {
+        match self {
+            Self::DateTime(datetime) => Self::DateTime(datetime.with_timezone(tz)),
+            Self::Date(date, _) => Self::Date(date.to_owned(), tz.to_owned()),
+        }
+    }
+
    pub fn parse(value: &str, timezone: Option<Tz>) -> Result<Self, CalDateTimeError> {
        if let Ok(datetime) = NaiveDateTime::parse_from_str(value, LOCAL_DATE_TIME) {
            if let Some(timezone) = timezone {
--- a/crates/store_sqlite/Cargo.toml
+++ b/crates/store_sqlite/Cargo.toml
@@ -36,3 +36,4 @@ pbkdf2.workspace = true
 rustical_ical.workspace = true
 rstest = { workspace = true, optional = true }
 sha2.workspace = true
+regex.workspace = true
--- a/crates/store_sqlite/src/calendar_store.rs
+++ b/crates/store_sqlite/src/calendar_store.rs
@@ -3,6 +3,7 @@ use crate::BEGIN_IMMEDIATE;
 use async_trait::async_trait;
 use chrono::TimeDelta;
 use derive_more::derive::Constructor;
+use regex::Regex;
 use rustical_ical::{CalDateTime, CalendarObject, CalendarObjectType};
 use rustical_store::calendar_store::CalendarQuery;
 use rustical_store::synctoken::format_synctoken;
@@ -145,6 +146,83 @@ impl SqliteCalendarStore {
        }
    }

+    /// In the past exports generated objects with invalid VERSION:4.0
+    /// This repair sets them to VERSION:2.0
+    #[allow(clippy::missing_panics_doc)]
+    pub async fn repair_invalid_version_4_0(&self) -> Result<(), Error> {
+        struct Row {
+            principal: String,
+            cal_id: String,
+            id: String,
+            ics: String,
+        }
+
+        let mut tx = self
+            .db
+            .begin_with(BEGIN_IMMEDIATE)
+            .await
+            .map_err(crate::Error::from)?;
+
+        #[allow(clippy::missing_panics_doc)]
+        let version_pattern = Regex::new(r"(?mi)^VERSION:4.0").unwrap();
+
+        let repairs: Vec<Row> = sqlx::query_as!(
+            Row,
+            r#"SELECT principal, cal_id, id, ics FROM calendarobjects WHERE ics LIKE '%VERSION:4.0%';"#
+        )
+        .fetch_all(&mut *tx)
+        .await
+        .map_err(crate::Error::from)?
+            .into_iter()
+            .filter_map(|mut row| {
+                version_pattern.find(&row.ics)?;
+                let new_ics = version_pattern.replace(&row.ics, "VERSION:2.0");
+                // Safeguard that we really only changed the version
+                assert_eq!(row.ics.len(), new_ics.len());
+                row.ics = new_ics.to_string();
+                Some(row)
+            })
+            .collect();
+
+        if repairs.is_empty() {
+            return Ok(());
+        }
+        warn!(
+            "Found {} calendar objects with invalid VERSION:4.0. Repairing by setting to VERSION:2.0",
+            repairs.len()
+        );
+
+        for repair in &repairs {
+            // calendarobjectchangelog is used by sync-collection to fetch changes
+            // By deleting entries we will later regenerate new entries such that clients will notice
+            // the objects have changed
+            warn!(
+                "Repairing VERSION for {}/{}/{}.ics",
+                repair.principal, repair.cal_id, repair.id
+            );
+            sqlx::query!(
+                "DELETE FROM calendarobjectchangelog WHERE (principal, cal_id, object_id) = (?, ?, ?);",
+                repair.principal, repair.cal_id, repair.id
+            ).execute(&mut *tx).await
+            .map_err(crate::Error::from)?;
+
+            sqlx::query!(
+                "UPDATE calendarobjects SET ics = ? WHERE (principal, cal_id, id) = (?, ?, ?);",
+                repair.ics,
+                repair.principal,
+                repair.cal_id,
+                repair.id
+            )
+            .execute(&mut *tx)
+            .await
+            .map_err(crate::Error::from)?;
+        }
+
+        tx.commit().await.map_err(crate::Error::from)?;
+
+        Ok(())
+    }
+
    // Commit "orphaned" objects to the changelog table
    pub async fn repair_orphans(&self) -> Result<(), Error> {
        struct Row {
--- a/crates/xml/src/unparsed.rs
+++ b/crates/xml/src/unparsed.rs
@@ -5,14 +5,14 @@ use quick_xml::events::BytesStart;
 use crate::{XmlDeserialize, XmlError};

 // TODO: actually implement
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub struct Unparsed(BytesStart<'static>);
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub struct Unparsed(String);

 impl Unparsed {
    #[must_use]
    pub fn tag_name(&self) -> String {
        // TODO: respect namespace?
-        String::from_utf8_lossy(self.0.local_name().as_ref()).to_string()
+        self.0.clone()
    }
 }

@@ -27,6 +27,7 @@ impl XmlDeserialize for Unparsed {
            let mut buf = vec![];
            reader.read_to_end_into(start.name(), &mut buf)?;
        }
-        Ok(Self(start.to_owned()))
+        let tag_name = String::from_utf8_lossy(start.local_name().as_ref()).to_string();
+        Ok(Self(tag_name))
    }
 }
--- a/docs/developers/rfcs/rfc4791.md
+++ b/docs/developers/rfcs/rfc4791.md
@@ -0,0 +1,253 @@
+# RFC 4791 (CalDAV)
+
+## ☑ 1. Introduction
+
+### ☑ 1.1 Notational Conventions
+
+### ☑ 1.2 XML Namespaces and Processing
+
+### ☐ 1.3 Method Preconditions and Postconditions
+
+## ☐ 2. Requirements Overview
+
+- [x] MUST support iCalendar [RFC2445] as a media type for the calendar
+      object resource format;
+
+- [ ] MUST support WebDAV Class 1 [RFC2518] (note that [rfc2518bis]
+      describes clarifications to [RFC2518] that aid interoperability);
+
+- [x] MUST support WebDAV ACL [RFC3744] with the additional privilege
+      defined in Section 6.1 of this document;
+
+- [x] MUST support transport over TLS [RFC2246] as defined in [RFC2818]
+      (note that [RFC2246] has been obsoleted by [RFC4346]);
+
+- [x] MUST support ETags [RFC2616] with additional requirements
+      specified in Section 5.3.4 of this document;
+
+- [ ] MUST support all calendaring reports defined in Section 7 of this
+      document; and
+
+- [x] MUST advertise support on all calendar collections and calendar
+      object resources for the calendaring reports in the DAV:supported-
+      report-set property, as defined in Versioning Extensions to WebDAV
+      [RFC3253].
+
+   In addition, a server:
+
+- [x] SHOULD support the MKCALENDAR method defined in Section 5.3.1 of
+      this document.
+
+## ☑ 3. Calendaring Data Model
+
+### ☑ 3.1 Calendar Server
+
+### ☑ 3.2 Recurrence and the Data Model
+
+## ☑ 4. Calendar Resources
+
+### ☑ 4.1 Calendar Object Resources
+
+### ☑ 4.2 Calendar Collection
+
+## ☐ 5. Calendar Access Feature
+
+### ☑ 5.1 Calendar Access Support
+
+#### ☑ 5.1.1 Example: Using OPTIONS for the Discovery of Calendar Access Support
+
+### ☑ 5.2 Calendar Collection Properties
+
+#### ☑ 5.2.1 CALDAV:calendar-description Property
+
+#### ☑ 5.2.2 CALDAV:calendar-timezone Property
+
+#### ☑ 5.2.3 CALDAV:supported-calendar-component-set Property
+
+#### ☑ 5.2.4 CALDAV:supported-calendar-data Property
+
+#### ☑ 5.2.5 CALDAV:max-resource-size Property
+
+#### ☑ 5.2.6 CALDAV:min-date-time Property
+
+#### ☑ 5.2.7 CALDAV:max-date-time Property
+
+#### ☐ 5.2.8 CALDAV:max-instances Property (Maybe set this :))
+
+#### ☑ 5.2.9 CALDAV:max-attendees-per-instance Property (does not apply)
+
+#### ☑ 5.2.10 Additional Precondition for PROPPATCH
+
+### ☑ 5.3 Creating Resources
+
+#### ☑ 5.3.1 MKCALENDAR Method
+
+##### ☑ 5.3.1.1 Status Codes
+
+##### ☑ 5.3.1.2 Example: Successful MKCALENDAR Request
+
+- Example fails because of the tzid is not in the Olson database, but that's okay
+
+#### ☑ 5.3.2 Creating Calendar Object Resources
+
+##### ☐ 5.3.2.1 Additional Preconditions for PUT, COPY, and MOVE
+
+### ☑ 5.3.3 Non-Standard Components, Properties, and Parameters
+
+### ☑ 5.3.4 Calendar Object Resource Entity Tag
+
+## ☐ 6. Calendaring Access Control
+
+### ☐ 6.1 Calendaring Privilege
+
+#### ☐ 6.1.1 CALDAV:read-free-busy Privilege
+
+### ☑ 6.2 Additional Principal Property
+
+#### ☑ 6.2.1 CALDAV:calendar-home-set Property
+
+## ☐ 7. Calendaring Reports
+
+- [ ] `DAV:expand-property`
+
+### ☑ 7.1 REPORT Method
+
+### ☑ 7.2 Ordinary Collections
+
+### ☑ 7.3 Date and Floating Time
+
+### ☑ 7.4 Time Range Filtering
+
+### ☑ 7.5 Searching Text: Collations
+
+#### ☑ 7.5.1 CALDAV:supported-collation-set Property
+
+### ☐ 7.6 Partial Retrieval
+
+### ☑ 7.7 Non-Standard Components, Properties, and Parameters
+
+### ☑ 7.8 CALDAV:calendar-query REPORT
+
+#### ☐ 7.8.1 Example: Partial Retrieval of Events by Time Range
+
+#### ☐ 7.8.2 Example: Partial Retrieval of Recurring Events
+
+#### ☐ 7.8.3 Example: Expanded Retrieval of Recurring Events
+
+#### ☐ 7.8.4 Example: Partial Retrieval of Stored Free Busy Components
+
+#### ☐ 7.8.5 Example: Retrieval of To-Dos by Alarm Time Range
+
+#### ☐ 7.8.6 Example: Retrieval of Event by UID
+
+#### ☐ 7.8.7 Example: Retrieval of Events by PARTSTAT
+
+#### ☐ 7.8.8 Example: Retrieval of Events Only
+
+#### ☐ 7.8.9 Example: Retrieval of All Pending To-Dos
+
+#### ☐ 7.8.10 Example: Attempt to Query Unsupported Property
+
+### ☐ 7.9 CALDAV:calendar-multiget REPORT
+
+#### ☐ 7.9.1 Example: Successful CALDAV:calendar-multiget REPORT
+
+### ☐ 7.10 CALDAV:free-busy-query REPORT
+
+#### ☐ 7.10.1 Example: Successful CALDAV:free-busy-query REPORT
+
+## ☐ 8. Guidelines
+
+### ☐ 8.1 Client-to-Client Interoperability
+
+### ☐ 8.2 Synchronization Operations
+
+#### ☐ 8.2.1 Use of Reports
+
+##### ☐ 8.2.1.1 Restrict the Time Range
+
+##### ☐ 8.2.1.2 Synchronize by Time Range
+
+##### ☐ 8.2.1.3 Synchronization Process
+
+#### ☐ 8.2.2 Restrict the Properties Returned
+
+### ☐ 8.3 Use of Locking
+
+### ☐ 8.4 Finding Calendars
+
+### ☐ 8.5 Storing and Using Attachments
+
+#### ☐ 8.5.1 Inline Attachments
+
+#### ☐ 8.5.2 External Attachments
+
+### ☐ 8.6 Storing and Using Alarms
+
+## ☐ 9. XML Element Definitions
+
+### ☐ 9.1 CALDAV:calendar XML Element
+
+### ☐ 9.2 CALDAV:mkcalendar XML Element
+
+### ☐ 9.3 CALDAV:mkcalendar-response XML Element
+
+### ☐ 9.4 CALDAV:supported-collation XML Element
+
+### ☐ 9.5 CALDAV:calendar-query XML Element
+
+### ☐ 9.6 CALDAV:calendar-data XML Element
+
+#### ☐ 9.6.1 CALDAV:comp XML Element
+
+#### ☐ 9.6.2 CALDAV:allcomp XML Element
+
+#### ☐ 9.6.3 CALDAV:allprop XML Element
+
+#### ☐ 9.6.4 CALDAV:prop XML Element
+
+#### ☐ 9.6.5 CALDAV:expand XML Element
+
+#### ☐ 9.6.6 CALDAV:limit-recurrence-set XML Element
+
+#### ☐ 9.6.7 CALDAV:limit-freebusy-set XML Element
+
+### ☐ 9.7 CALDAV:filter XML Element
+
+#### ☐ 9.7.1 CALDAV:comp-filter XML Element
+
+#### ☐ 9.7.2 CALDAV:prop-filter XML Element
+
+#### ☐ 9.7.3 CALDAV:param-filter XML Element
+
+#### ☐ 9.7.4 CALDAV:is-not-defined XML Element
+
+#### ☐ 9.7.5 CALDAV:text-match XML Element
+
+### ☐ 9.8 CALDAV:timezone XML Element
+
+### ☐ 9.9 CALDAV:time-range XML Element
+
+### ☐ 9.10 CALDAV:calendar-multiget XML Element
+
+### ☐ 9.11 CALDAV:free-busy-query XML Element
+
+## ☐ 10. Internationalization Considerations
+
+## ☐ 11. Security Considerations
+
+## ☐ 12. IANA Considerations
+
+### ☐ 12.1 Namespace Registration
+
+## ☐ 13. Acknowledgements
+
+## ☐ 14. References
+
+### ☐ 14.1 Normative References
+
+### ☐ 14.2 Informative References
+
+## ☐ A. CalDAV Method Privilege Table (Normative)
+
+## ☐ B. Calendar Collections Used in the Examples
--- a/docs/developers/rfcs/rfc6352.md
+++ b/docs/developers/rfcs/rfc6352.md
@@ -0,0 +1,175 @@
+# RFC 6352 (CardDAV)
+
+## ☑ 1. Introduction and Overview
+
+## ☑ 2. Conventions
+
+## ☐ 3. Requirements Overview
+
+## ☑ 4. Address Book Data Model
+
+### ☑ 4.1 Address Book Server
+
+## ☐ 5. Address Book Resources
+
+### ☐ 5.1 Address Object Resources
+
+- vCard objects MUST have a unique UID
+  - Right now the uniqueness is not enforced in store_sqlite :(
+
+#### ☐ 5.1.1 Data Type Conversion
+
+Again, the client can use content negotiation to
+   request that data be returned in a specific media type by specifying
+   appropriate attributes on the CARDDAV:address-data XML element used
+   in the request body (see Section 10.4).
+
+- [ ] Accept address-data attributes
+
+#### ☐ 5.1.1.1 Additional Precondition for GET
+
+- Make sure that Accept header matches content type
+
+### ☐ 5.2 Address Book Collections
+
+## ☑ 6. Address Book Feature
+
+### ☑ 6.1 Address Book Support
+
+#### ☑ 6.1.1 Example: Using OPTIONS for the Discovery of Support for CardDAV
+
+### ☐ 6.2 Address Book Properties
+
+#### ☑ 6.2.1 CARDDAV:addressbook-description Property
+
+#### ☑ 6.2.2 CARDDAV:supported-address-data Property
+
+#### ☑ 6.2.3 CARDDAV:max-resource-size Property
+
+### ☐ 6.3 Creating Resources
+
+#### ☑ 6.3.1 Extended MKCOL Method
+
+##### ☑ 6.3.1.1 Example - Successful MKCOL Request
+
+#### ☐ 6.3.2 Creating Address Object Resources
+
+- [x] If-None-Match support
+
+##### ☐ 6.3.2.1 Additional Preconditions for PUT, COPY, and MOVE
+
+- [ ] Make sure UID is unique
+
+##### ☑ 6.3.2.2 Non-Standard vCard Properties and Parameters
+
+##### ☑ 6.3.2.3 Address Object Resource Entity Tag
+
+## ☑ 7. Address Book Access Control
+
+### ☑ 7.1 Additional Principal Properties
+
+#### ☑ 7.1.1 CARDDAV:addressbook-home-set Property
+
+#### ☑ 7.1.2 CARDDAV:principal-address Property
+
+## ☐ 8. Address Book Reports
+
+### ☐ 8.1 REPORT Method
+
+- [ ] DAV:expand-property REPORT
+
+### ☑ 8.2 Ordinary Collections
+
+### ☑ 8.3 Searching Text: Collations
+
+#### ☑ 8.3.1 CARDDAV:supported-collation-set Property
+
+### ☐ 8.4 Partial Retrieval (Optional)
+
+### ☑ 8.5 Non-Standard Properties and Parameters
+
+### ☑ 8.6 CARDDAV:addressbook-query Report
+
+#### ☐ 8.6.1 Limiting Results
+
+#### ☑ 8.6.2 Truncation of Results (does not apply)
+
+#### ☐ 8.6.3 Example: Partial Retrieval of vCards Matching NICKNAME
+
+#### ☐ 8.6.4 Example: Partial Retrieval of vCards Matching a Full Name or Email Address
+
+#### ☐ 8.6.5 Example: Truncated Results
+
+### ☐ 8.7 CARDDAV:addressbook-multiget Report
+
+#### ☑ 8.7.1 Example: CARDDAV:addressbook-multiget Report
+
+#### ☐ 8.7.2 Example: CARDDAV:addressbook-multiget Report
+
+- [ ] Check for content-type of requested data
+
+    ```
+    <C:address-data content-type='text/vcard' version='4.0'/>
+    ```
+
+## ☑ 9. Client Guidelines
+
+### ☑ 9.1 Restrict the Properties Returned
+
+### ☑ 9.2 Avoiding Lost Updates
+
+### ☑ 9.3 Client Configuration
+
+### ☐ 9.4 Finding Other Users' Address Books
+
+- [ ] Implement DAV:principal-property-search REPORT [RFC3744]
+
+## ☑ 10. XML Element Definitions
+
+### ☑ 10.1 CARDDAV:addressbook XML Element
+
+### ☑ 10.2 CARDDAV:supported-collation XML Element
+
+### ☑ 10.3 CARDDAV:addressbook-query XML Element
+
+### ☑ 10.4 CARDDAV:address-data XML Element
+
+- [ ] Support content-type and version
+
+#### ☐ 10.4.1 CARDDAV:allprop XML Element (does not apply, is for vCard props)
+
+#### ☐ 10.4.2 CARDDAV:prop XML Element (does not apply, is for vCard props)
+
+### ☑ 10.5 CARDDAV:filter XML Element
+
+#### ☑ 10.5.1 CARDDAV:prop-filter XML Element
+
+#### ☑ 10.5.2 CARDDAV:param-filter XML Element
+
+#### ☑ 10.5.3 CARDDAV:is-not-defined XML Element
+
+#### ☑ 10.5.4 CARDDAV:text-match XML Element
+
+### ☑ 10.6 CARDDAV:limit XML Element
+
+#### ☑ 10.6.1 CARDDAV:nresults XML Element
+
+### ☑ 10.7 CARDDAV:addressbook-multiget XML Element
+
+## ☑ 11. Service Discovery via SRV Records
+
+## ☑ 12. Internationalization Considerations
+
+## ☑ 13. Security Considerations
+
+## ☑ 14. IANA Consideration
+
+### ☑ 14.1 Namespace Registration
+
+## ☑ 15. Acknowledgments
+
+## ☑ 16. References
+
+### ☑ 16.1 Normative References
+
+### ☑ 16.2 Informative References
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -75,7 +75,9 @@ nav:
  - OpenID Connect: setup/oidc.md
  - Developers:
      - developers/index.md
-      - Relevant RFCs: developers/rfcs.md
+      - Relevant RFCs:
+          - developers/rfcs.md
+          - RFC 6352: developers/rfcs/rfc6352.md
      - Frontend: developers/frontend.md
      - Debugging: developers/debugging.md
  - Cargo docs: /rustical/_crate/rustical/
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -17,6 +17,7 @@ pub fn cmd_gen_config(_args: GenConfigArgs) -> anyhow::Result<()> {
        http: HttpConfig::default(),
        data_store: DataStoreConfig::Sqlite(SqliteDataStoreConfig {
            db_url: "/var/lib/rustical/db.sqlite3".to_owned(),
+            run_repairs: true,
        }),
        tracing: TracingConfig::default(),
        frontend: FrontendConfig {
--- a/src/config.rs
+++ b/src/config.rs
@@ -26,6 +26,8 @@ impl Default for HttpConfig {
 #[serde(deny_unknown_fields)]
 pub struct SqliteDataStoreConfig {
    pub db_url: String,
+    #[serde(default = "default_true")]
+    pub run_repairs: bool,
 }

 #[derive(Debug, Deserialize, Serialize)]
--- a/src/integration_tests/caldav/calendar.rs
+++ b/src/integration_tests/caldav/calendar.rs
@@ -29,12 +29,34 @@ fn mkcalendar_template(
            <displayname>{displayname}</displayname>
            <CAL:calendar-description>{description}</CAL:calendar-description>
            <n0:calendar-color xmlns:n0="http://apple.com/ns/ical/">{color}</n0:calendar-color>
-            <CAL:calendar-timezone-id>Europe/Berlin</CAL:calendar-timezone-id>
            <CAL:supported-calendar-component-set>
                <CAL:comp name="VEVENT"/>
                <CAL:comp name="VTODO"/>
                <CAL:comp name="VJOURNAL"/>
            </CAL:supported-calendar-component-set>
+            <CAL:calendar-timezone><![CDATA[BEGIN:VCALENDAR
+PRODID:-//Example Corp.//CalDAV Client//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:US/Eastern
+LAST-MODIFIED:19870101T000000Z
+BEGIN:STANDARD
+DTSTART:19671029T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+TZNAME:Eastern Standard Time (US & Canada)
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:19870405T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+TZNAME:Eastern Daylight Time (US & Canada)
+END:DAYLIGHT
+END:VTIMEZONE
+END:VCALENDAR
+]]></CAL:calendar-timezone>
        </prop>
    </set>
 </CAL:mkcalendar>
@@ -209,3 +231,106 @@ async fn test_caldav_calendar(
        Err(rustical_store::Error::NotFound)
    ));
 }
+
+#[rstest]
+#[tokio::test]
+async fn test_rfc4791_5_3_2(
+    #[from(test_store_context)]
+    #[future]
+    context: TestStoreContext,
+) {
+    let context = context.await;
+    let app = get_app(context.clone());
+
+    let calendar_meta = CalendarMetadata {
+        displayname: Some("Calendar".to_string()),
+        description: Some("Description".to_string()),
+        color: Some("#00FF00".to_string()),
+        order: 0,
+    };
+    let (principal, cal_id) = ("user", "calendar");
+    let url = format!("/caldav/principal/{principal}/{cal_id}");
+
+    let request_template = || {
+        Request::builder()
+            .method("MKCALENDAR")
+            .uri(&url)
+            .body(Body::from(mkcalendar_template(&calendar_meta)))
+            .unwrap()
+    };
+
+    // Try with correct credentials
+    let mut request = request_template();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CREATED);
+
+    let ical = r"BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VEVENT
+UID:20010712T182145Z-123401@example.com
+DTSTAMP:20060712T182145Z
+DTSTART:20060714T170000Z
+DTEND:20060715T040000Z
+SUMMARY:Bastille Day Party
+END:VEVENT
+END:VCALENDAR";
+
+    let mut request = Request::builder()
+        .method("PUT")
+        .uri(format!("{url}/qwue23489.ics"))
+        .header("If-None-Match", "*")
+        .header("Content-Type", "text/calendar")
+        .body(Body::from(ical))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CREATED);
+
+    let mut request = Request::builder()
+        .method("PUT")
+        .uri(format!("{url}/qwue23489.ics"))
+        .header("If-None-Match", "*")
+        .header("Content-Type", "text/calendar")
+        .body(Body::from(ical))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CONFLICT);
+
+    let mut request = Request::builder()
+        .method("REPORT")
+        .uri(&url)
+        .header("Depth", "infinity")
+        .header("Content-Type", "text/xml; charset=\"utf-8\"")
+        .body(Body::from(format!(
+            r#"
+            <?xml version="1.0" encoding="utf-8" ?>
+            <C:calendar-multiget xmlns:D="DAV:"
+                                    xmlns:C="urn:ietf:params:xml:ns:caldav">
+                <D:prop>
+                    <D:getetag/>
+                </D:prop>
+                <D:href>{url}/qwue23489.ics</D:href>
+                <D:href>/home/bernard/addressbook/vcf1.vcf</D:href>
+            </C:calendar-multiget>
+        "#
+        )))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::MULTI_STATUS);
+    let body = response.extract_string().await;
+    insta::assert_snapshot!("multiget_body", body);
+}
--- a/src/integration_tests/caldav/calendar_import.rs
+++ b/src/integration_tests/caldav/calendar_import.rs
@@ -0,0 +1,98 @@
+use crate::integration_tests::{ResponseExtractString, get_app};
+use axum::body::Body;
+use axum::extract::Request;
+use headers::{Authorization, HeaderMapExt};
+use http::StatusCode;
+use rstest::rstest;
+use rustical_store_sqlite::tests::{TestStoreContext, test_store_context};
+use tower::ServiceExt;
+
+const ICAL: &str = r"
+BEGIN:VCALENDAR
+PRODID:-//Example Corp.//CalDAV Client//EN
+VERSION:2.0
+BEGIN:VEVENT
+UID:1@example.com
+SUMMARY:One-off Meeting
+DTSTAMP:20041210T183904Z
+DTSTART:20041207T120000Z
+DTEND:20041207T130000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:2@example.com
+SUMMARY:Weekly Meeting
+DTSTAMP:20041210T183838Z
+DTSTART:20041206T120000Z
+DTEND:20041206T130000Z
+RRULE:FREQ=WEEKLY
+END:VEVENT
+BEGIN:VEVENT
+UID:2@example.com
+SUMMARY:Weekly Meeting
+RECURRENCE-ID:20041213T120000Z
+DTSTAMP:20041210T183838Z
+DTSTART:20041213T130000Z
+DTEND:20041213T140000Z
+END:VEVENT
+END:VCALENDAR
+";
+
+#[rstest]
+#[case(0, ICAL)]
+#[case(1, include_str!("resources/rfc4791_appb.ics"))]
+#[tokio::test]
+async fn test_import(
+    #[from(test_store_context)]
+    #[future]
+    context: TestStoreContext,
+    #[case] case: usize,
+    #[case] ical: &'static str,
+) {
+    let context = context.await;
+    let app = get_app(context.clone());
+
+    let (principal, addr_id) = ("user", "calendar");
+    let url = format!("/caldav/principal/{principal}/{addr_id}");
+
+    let request_template = || {
+        Request::builder()
+            .method("IMPORT")
+            .uri(&url)
+            .body(Body::from(ical))
+            .unwrap()
+    };
+
+    // Try without authentication
+    let request = request_template();
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::UNAUTHORIZED);
+
+    // Try with correct credentials
+    let mut request = request_template();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::OK);
+    let body = response.extract_string().await;
+    insta::assert_snapshot!(format!("{case}_import_body"), body);
+
+    let mut request = Request::builder()
+        .method("GET")
+        .uri(&url)
+        .body(Body::empty())
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::OK);
+    let body = response.extract_string().await;
+    insta::with_settings!({
+        filters => vec![
+            (r"UID:.+", "UID:[UID]")
+        ]
+    }, {
+        insta::assert_snapshot!(format!("{case}_get_body"), body);
+    });
+}
--- a/src/integration_tests/caldav/calendar_report.rs
+++ b/src/integration_tests/caldav/calendar_report.rs
@@ -0,0 +1,196 @@
+use crate::integration_tests::{ResponseExtractString, get_app};
+use axum::body::Body;
+use axum::extract::Request;
+use headers::{Authorization, HeaderMapExt};
+use http::StatusCode;
+use rstest::rstest;
+use rustical_store_sqlite::tests::{TestStoreContext, test_store_context};
+use tower::ServiceExt;
+
+const ICS_1: &str = include_str!("resources/rfc4791_appb.ics");
+
+const REPORT_7_8_1: &str = r#"
+<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:"
+                xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <D:getetag/>
+        <C:calendar-data>
+            <C:comp name="VCALENDAR">
+            <C:prop name="VERSION"/>
+            <C:comp name="VEVENT">
+                <C:prop name="SUMMARY"/>
+                <C:prop name="UID"/>
+                <C:prop name="DTSTART"/>
+                <C:prop name="DTEND"/>
+                <C:prop name="DURATION"/>
+                <C:prop name="RRULE"/>
+                <C:prop name="RDATE"/>
+                <C:prop name="EXRULE"/>
+                <C:prop name="EXDATE"/>
+                <C:prop name="RECURRENCE-ID"/>
+            </C:comp>
+            <C:comp name="VTIMEZONE"/>
+            </C:comp>
+        </C:calendar-data>
+    </D:prop>
+    <C:filter>
+    <C:comp-filter name="VCALENDAR">
+        <C:comp-filter name="VEVENT">
+        <C:time-range start="20060104T000000Z"
+                        end="20060105T000000Z"/>
+        </C:comp-filter>
+    </C:comp-filter>
+    </C:filter>
+</C:calendar-query>
+"#;
+
+const REPORT_7_8_2: &str = r#"
+<?xml version="1.0" encoding="utf-8" ?>
+   <C:calendar-query xmlns:D="DAV:"
+                     xmlns:C="urn:ietf:params:xml:ns:caldav">
+     <D:prop>
+       <C:calendar-data>
+         <C:limit-recurrence-set start="20060103T000000Z"
+                                 end="20060105T000000Z"/>
+       </C:calendar-data>
+     </D:prop>
+     <C:filter>
+       <C:comp-filter name="VCALENDAR">
+         <C:comp-filter name="VEVENT">
+           <C:time-range start="20060103T000000Z"
+                         end="20060105T000000Z"/>
+         </C:comp-filter>
+       </C:comp-filter>
+     </C:filter>
+   </C:calendar-query>
+"#;
+
+const REPORT_7_8_3: &str = r#"
+ <?xml version="1.0" encoding="utf-8" ?>
+   <C:calendar-query xmlns:D="DAV:"
+                     xmlns:C="urn:ietf:params:xml:ns:caldav">
+     <D:prop>
+       <C:calendar-data>
+         <C:expand start="20060103T000000Z"
+                   end="20060105T000000Z"/>
+       </C:calendar-data>
+     </D:prop>
+     <C:filter>
+       <C:comp-filter name="VCALENDAR">
+         <C:comp-filter name="VEVENT">
+           <C:time-range start="20060103T000000Z"
+                         end="20060105T000000Z"/>
+         </C:comp-filter>
+       </C:comp-filter>
+     </C:filter>
+   </C:calendar-query>
+"#;
+
+const OUTPUT_7_8_3: &str = r#"
+     <D:response>
+       <D:href>http://cal.example.com/bernard/work/abcd2.ics</D:href>
+       <D:propstat>
+         <D:prop>
+           <D:getetag>"fffff-abcd2"</D:getetag>
+           <C:calendar-data>BEGIN:VCALENDAR
+   VERSION:2.0
+   PRODID:-//Example Corp.//CalDAV Client//EN
+   BEGIN:VEVENT
+   DTSTAMP:20060206T001121Z
+   DTSTART:20060103T170000
+   DURATION:PT1H
+   RECURRENCE-ID:20060103T170000
+   SUMMARY:Event #2
+   UID:00959BC664CA650E933C892C@example.com
+   END:VEVENT
+   BEGIN:VEVENT
+   DTSTAMP:20060206T001121Z
+   DTSTART:20060104T190000
+   DURATION:PT1H
+   RECURRENCE-ID:20060104T170000
+   SUMMARY:Event #2 bis
+   UID:00959BC664CA650E933C892C@example.com
+   END:VEVENT
+   END:VCALENDAR
+   </C:calendar-data>
+         </D:prop>
+         <D:status>HTTP/1.1 200 OK</D:status>
+       </D:propstat>
+     </D:response>
+     <D:response>
+       <D:href>http://cal.example.com/bernard/work/abcd3.ics</D:href>
+       <D:propstat>
+         <D:prop>
+           <D:getetag>"fffff-abcd3"</D:getetag>
+           <C:calendar-data>BEGIN:VCALENDAR
+   VERSION:2.0
+   PRODID:-//Example Corp.//CalDAV Client//EN
+   BEGIN:VEVENT
+   ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+   ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+   DTSTAMP:20060206T001220Z
+   DTSTART:20060104T150000
+   DURATION:PT1H
+   LAST-MODIFIED:20060206T001330Z
+   ORGANIZER:mailto:cyrus@example.com
+   SEQUENCE:1
+   STATUS:TENTATIVE
+   SUMMARY:Event #3
+   UID:DC6C50A017428C5216A2F1CD@example.com
+   X-ABC-GUID:E1CX5Dr-0007ym-Hz@example.com
+   END:VEVENT
+   END:VCALENDAR
+   </C:calendar-data>
+         </D:prop>
+         <D:status>HTTP/1.1 200 OK</D:status>
+       </D:propstat>
+"#;
+
+#[rstest]
+#[case(0, ICS_1, REPORT_7_8_1)]
+#[case(1, ICS_1, REPORT_7_8_2)]
+#[case(2, ICS_1, REPORT_7_8_3)]
+#[tokio::test]
+async fn test_report(
+    #[from(test_store_context)]
+    #[future]
+    context: TestStoreContext,
+    #[case] case: usize,
+    #[case] ics: &'static str,
+    #[case] report: &'static str,
+) {
+    let context = context.await;
+    let app = get_app(context.clone());
+
+    let (principal, addr_id) = ("user", "calendar");
+    let url = format!("/caldav/principal/{principal}/{addr_id}");
+
+    let request_template = || {
+        Request::builder()
+            .method("IMPORT")
+            .uri(&url)
+            .body(Body::from(ics))
+            .unwrap()
+    };
+    // Try with correct credentials
+    let mut request = request_template();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::OK);
+
+    let mut request = Request::builder()
+        .method("REPORT")
+        .uri(&url)
+        .body(Body::from(report))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::MULTI_STATUS);
+    let body = response.extract_string().await;
+    insta::assert_snapshot!(format!("{case}_report_body"), body);
+}
--- a/src/integration_tests/caldav/mod.rs
+++ b/src/integration_tests/caldav/mod.rs
@@ -8,6 +8,8 @@ use rustical_store_sqlite::tests::{TestStoreContext, test_store_context};
 use tower::ServiceExt;

 mod calendar;
+mod calendar_import;
+mod calendar_report;

 #[rstest]
 #[tokio::test]
--- a/src/integration_tests/caldav/resources/rfc4791_appb.ics
+++ b/src/integration_tests/caldav/resources/rfc4791_appb.ics
@@ -0,0 +1,102 @@
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VTIMEZONE
+LAST-MODIFIED:20040110T032845Z
+TZID:US/Eastern
+BEGIN:DAYLIGHT
+DTSTART:20000404T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+DTSTART:20001026T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20060206T001102Z
+DTSTART;TZID=US/Eastern:20060102T100000
+DURATION:PT1H
+SUMMARY:Event #1
+Description:Go Steelers!
+UID:abcd1
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060102T120000
+DURATION:PT1H
+RRULE:FREQ=DAILY;COUNT=5
+SUMMARY:Event #2
+UID:abcd2
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060104T140000
+DURATION:PT1H
+RECURRENCE-ID;TZID=US/Eastern:20060104T120000
+SUMMARY:Event #2 bis
+UID:abcd2
+END:VEVENT
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART;TZID=US/Eastern:20060104T100000
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:abcd3
+END:VEVENT
+BEGIN:VTODO
+DTSTAMP:20060205T235335Z
+DUE;VALUE=DATE:20060104
+STATUS:NEEDS-ACTION
+SUMMARY:Task #1
+UID:abcd4
+BEGIN:VALARM
+ACTION:AUDIO
+TRIGGER;RELATED=START:-PT10M
+END:VALARM
+END:VTODO
+BEGIN:VTODO
+DTSTAMP:20060205T235300Z
+DUE;VALUE=DATE:20060106
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:NEEDS-ACTION
+SUMMARY:Task #2
+UID:abcd5
+BEGIN:VALARM
+ACTION:AUDIO
+TRIGGER;RELATED=START:-PT10M
+END:VALARM
+END:VTODO
+BEGIN:VTODO
+COMPLETED:20051223T122322Z
+DTSTAMP:20060205T235400Z
+DUE;VALUE=DATE:20051225
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:COMPLETED
+SUMMARY:Task #3
+UID:abcd6
+END:VTODO
+BEGIN:VTODO
+DTSTAMP:20060205T235600Z
+DUE;VALUE=DATE:20060101
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:CANCELLED
+SUMMARY:Task #4
+UID:abcd7
+END:VTODO
+END:VCALENDAR
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__get_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__get_body.snap
@@ -8,5 +8,5 @@ CALSCALE:GREGORIAN
 PRODID:RustiCal
 X-WR-CALNAME:Calendar
 X-WR-CALDESC:Description
-X-WR-TIMEZONE:Europe/Berlin
+X-WR-TIMEZONE:US/Eastern
 END:VCALENDAR
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__multiget_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__multiget_body.snap
@@ -0,0 +1,20 @@
+---
+source: src/integration_tests/caldav/calendar.rs
+expression: body
+---
+<?xml version="1.0" encoding="utf-8"?>
+<multistatus xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav" xmlns:CS="http://calendarserver.org/ns/" xmlns:PUSH="https://bitfire.at/webdav-push">
+    <response>
+        <href>/caldav/principal/user/calendar/qwue23489.ics</href>
+        <propstat>
+            <prop>
+                <getetag>&quot;aea50382a7775bb9742bfec277382e3a260b6066f503b5f5ae34548d7215ee46&quot;</getetag>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+    <response>
+        <href>/home/bernard/addressbook/vcf1.vcf</href>
+        <status>HTTP/1.1 404 Not Found</status>
+    </response>
+</multistatus>
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__propfind_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__propfind_body.snap
@@ -14,109 +14,117 @@ expression: body
 PRODID:-//github.com/lennart-k/vzic-rs//RustiCal Calendar server//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:Europe/Berlin
+TZID:America/New_York
 LAST-MODIFIED:20250723T190331Z
-X-LIC-LOCATION:Europe/Berlin
+X-LIC-LOCATION:America/New_York
 X-PROLEPTIC-TZNAME:LMT
 BEGIN:STANDARD
-TZNAME:CET
-TZOFFSETFROM:+005328
-TZOFFSETTO:+0100
-DTSTART:18930401T000000
+TZNAME:EST
+TZOFFSETFROM:-045602
+TZOFFSETTO:-0500
+DTSTART:18831118T120358
 END:STANDARD
 BEGIN:DAYLIGHT
-TZNAME:CEST
-TZOFFSETFROM:+0100
-TZOFFSETTO:+0200
-DTSTART:19160430T230000
-RDATE:19400401T020000
-RDATE:19430329T020000
-RDATE:19460414T020000
-RDATE:19470406T030000
-RDATE:19480418T020000
-RDATE:19490410T020000
-RDATE:19800406T020000
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:19180331T020000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU;UNTIL=19200328T070000Z
 END:DAYLIGHT
 BEGIN:STANDARD
-TZNAME:CET
-TZOFFSETFROM:+0200
-TZOFFSETTO:+0100
-DTSTART:19161001T010000
-RDATE:19421102T030000
-RDATE:19431004T030000
-RDATE:19441002T030000
-RDATE:19451118T030000
-RDATE:19461007T030000
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+DTSTART:19181027T020000
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU;UNTIL=19201031T060000Z
 END:STANDARD
 BEGIN:DAYLIGHT
-TZNAME:CEST
-TZOFFSETFROM:+0100
-TZOFFSETTO:+0200
-DTSTART:19170416T020000
-RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=3MO;UNTIL=19180415T010000Z
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:19210424T020000
+RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=-1SU;UNTIL=19410427T070000Z
 END:DAYLIGHT
 BEGIN:STANDARD
-TZNAME:CET
-TZOFFSETFROM:+0200
-TZOFFSETTO:+0100
-DTSTART:19170917T030000
-RRULE:FREQ=YEARLY;BYMONTH=9;BYDAY=3MO;UNTIL=19180916T010000Z
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+DTSTART:19210925T020000
+RRULE:FREQ=YEARLY;BYMONTH=9;BYDAY=-1SU;UNTIL=19410928T060000Z
 END:STANDARD
 BEGIN:DAYLIGHT
-TZNAME:CEST
-TZOFFSETFROM:+0100
-TZOFFSETTO:+0200
-DTSTART:19440403T020000
-RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=1MO;UNTIL=19450402T010000Z
+TZNAME:EWT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:19420209T020000
 END:DAYLIGHT
 BEGIN:DAYLIGHT
-TZNAME:CEMT
-TZOFFSETFROM:+0200
-TZOFFSETTO:+0300
-DTSTART:19450524T020000
-RDATE:19470511T030000
-END:DAYLIGHT
-BEGIN:DAYLIGHT
-TZNAME:CEST
-TZOFFSETFROM:+0300
-TZOFFSETTO:+0200
-DTSTART:19450924T030000
-RDATE:19470629T030000
+TZNAME:EPT
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0400
+DTSTART:19450814T190000
 END:DAYLIGHT
 BEGIN:STANDARD
-TZNAME:CET
-TZOFFSETFROM:+0100
-TZOFFSETTO:+0100
-DTSTART:19460101T000000
-RDATE:19800101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZNAME:CET
-TZOFFSETFROM:+0200
-TZOFFSETTO:+0100
-DTSTART:19471005T030000
-RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=1SU;UNTIL=19491002T010000Z
-END:STANDARD
-BEGIN:STANDARD
-TZNAME:CET
-TZOFFSETFROM:+0200
-TZOFFSETTO:+0100
-DTSTART:19800928T030000
-RRULE:FREQ=YEARLY;BYMONTH=9;BYDAY=-1SU;UNTIL=19950924T010000Z
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+DTSTART:19450930T020000
 END:STANDARD
 BEGIN:DAYLIGHT
-TZNAME:CEST
-TZOFFSETFROM:+0100
-TZOFFSETTO:+0200
-DTSTART:19810329T020000
-RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:19460428T020000
+RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=-1SU;UNTIL=19730429T070000Z
 END:DAYLIGHT
 BEGIN:STANDARD
-TZNAME:CET
-TZOFFSETFROM:+0200
-TZOFFSETTO:+0100
-DTSTART:19961027T030000
-RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+DTSTART:19460929T020000
+RRULE:FREQ=YEARLY;BYMONTH=9;BYDAY=-1SU;UNTIL=19540926T060000Z
+END:STANDARD
+BEGIN:STANDARD
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+DTSTART:19551030T020000
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU;UNTIL=20061029T060000Z
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:19740106T020000
+RDATE:19750223T020000
+END:DAYLIGHT
+BEGIN:DAYLIGHT
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:19760425T020000
+RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=-1SU;UNTIL=19860427T070000Z
+END:DAYLIGHT
+BEGIN:DAYLIGHT
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:19870405T020000
+RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=1SU;UNTIL=20060402T070000Z
+END:DAYLIGHT
+BEGIN:DAYLIGHT
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+DTSTART:20070311T020000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+DTSTART:20071104T020000
+RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
 END:STANDARD
 END:VTIMEZONE
 END:VCALENDAR
@@ -124,7 +132,7 @@ END:VCALENDAR
                <CAL:timezone-service-set>
                    <href>https://www.iana.org/time-zones</href>
                </CAL:timezone-service-set>
-                <CAL:calendar-timezone-id>Europe/Berlin</CAL:calendar-timezone-id>
+                <CAL:calendar-timezone-id>US/Eastern</CAL:calendar-timezone-id>
                <calendar-order xmlns="http://apple.com/ns/ical/">0</calendar-order>
                <CAL:supported-calendar-component-set>
                    <CAL:comp name="VEVENT"/>
@@ -139,7 +147,7 @@ END:VCALENDAR
                    <CAL:supported-collation>i;unicode-casemap</CAL:supported-collation>
                    <CAL:supported-collation>i;octet</CAL:supported-collation>
                </CAL:supported-collation-set>
-                <max-resource-size>10000000</max-resource-size>
+                <CAL:max-resource-size>10000000</CAL:max-resource-size>
                <supported-report-set>
                    <supported-report>
                        <report>
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__0_get_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__0_get_body.snap
@@ -0,0 +1,32 @@
+---
+source: src/integration_tests/caldav/calendar_import.rs
+expression: body
+---
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:RustiCal
+BEGIN:VEVENT
+UID:[UID]
+SUMMARY:One-off Meeting
+DTSTAMP:20041210T183904Z
+DTSTART:20041207T120000Z
+DTEND:20041207T130000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:[UID]
+SUMMARY:Weekly Meeting
+DTSTAMP:20041210T183838Z
+DTSTART:20041206T120000Z
+DTEND:20041206T130000Z
+RRULE:FREQ=WEEKLY
+END:VEVENT
+BEGIN:VEVENT
+UID:[UID]
+SUMMARY:Weekly Meeting
+RECURRENCE-ID:20041213T120000Z
+DTSTAMP:20041210T183838Z
+DTSTART:20041213T130000Z
+DTEND:20041213T140000Z
+END:VEVENT
+END:VCALENDAR
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__0_import_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__0_import_body.snap
@@ -0,0 +1,5 @@
+---
+source: src/integration_tests/caldav/calendar_import.rs
+expression: body
+---
+
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__1_get_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__1_get_body.snap
@@ -0,0 +1,107 @@
+---
+source: src/integration_tests/caldav/calendar_import.rs
+expression: body
+---
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:RustiCal
+BEGIN:VTIMEZONE
+LAST-MODIFIED:20040110T032845Z
+TZID:US/Eastern
+BEGIN:DAYLIGHT
+DTSTART:20000404T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+DTSTART:20001026T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20060206T001102Z
+DTSTART;TZID=US/Eastern:20060102T100000
+DURATION:PT1H
+SUMMARY:Event #1
+Description:Go Steelers!
+UID:[UID]
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060102T120000
+DURATION:PT1H
+RRULE:FREQ=DAILY;COUNT=5
+SUMMARY:Event #2
+UID:[UID]
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060104T140000
+DURATION:PT1H
+RECURRENCE-ID;TZID=US/Eastern:20060104T120000
+SUMMARY:Event #2 bis
+UID:[UID]
+END:VEVENT
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART;TZID=US/Eastern:20060104T100000
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:[UID]
+END:VEVENT
+BEGIN:VTODO
+DTSTAMP:20060205T235335Z
+DUE;VALUE=DATE:20060104
+STATUS:NEEDS-ACTION
+SUMMARY:Task #1
+UID:[UID]
+BEGIN:VALARM
+ACTION:AUDIO
+TRIGGER;RELATED=START:-PT10M
+END:VALARM
+END:VTODO
+BEGIN:VTODO
+DTSTAMP:20060205T235300Z
+DUE;VALUE=DATE:20060106
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:NEEDS-ACTION
+SUMMARY:Task #2
+UID:[UID]
+BEGIN:VALARM
+ACTION:AUDIO
+TRIGGER;RELATED=START:-PT10M
+END:VALARM
+END:VTODO
+BEGIN:VTODO
+COMPLETED:20051223T122322Z
+DTSTAMP:20060205T235400Z
+DUE;VALUE=DATE:20051225
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:COMPLETED
+SUMMARY:Task #3
+UID:[UID]
+END:VTODO
+BEGIN:VTODO
+DTSTAMP:20060205T235600Z
+DUE;VALUE=DATE:20060101
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:CANCELLED
+SUMMARY:Task #4
+UID:[UID]
+END:VTODO
+END:VCALENDAR
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__1_import_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__1_import_body.snap
@@ -0,0 +1,5 @@
+---
+source: src/integration_tests/caldav/calendar_import.rs
+expression: body
+---
+
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__get_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__get_body.snap
@@ -0,0 +1,107 @@
+---
+source: src/integration_tests/caldav/calendar_import.rs
+expression: body
+---
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:RustiCal
+BEGIN:VTIMEZONE
+LAST-MODIFIED:20040110T032845Z
+TZID:US/Eastern
+BEGIN:DAYLIGHT
+DTSTART:20000404T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+DTSTART:20001026T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060104T140000
+DURATION:PT1H
+RECURRENCE-ID;TZID=US/Eastern:20060104T120000
+SUMMARY:Event #2 bis
+UID:[UID]
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001102Z
+DTSTART;TZID=US/Eastern:20060102T100000
+DURATION:PT1H
+SUMMARY:Event #1
+Description:Go Steelers!
+UID:[UID]
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060102T120000
+DURATION:PT1H
+RRULE:FREQ=DAILY;COUNT=5
+SUMMARY:Event #2
+UID:[UID]
+END:VEVENT
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART;TZID=US/Eastern:20060104T100000
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:[UID]
+END:VEVENT
+BEGIN:VTODO
+DTSTAMP:20060205T235335Z
+DUE;VALUE=DATE:20060104
+STATUS:NEEDS-ACTION
+SUMMARY:Task #1
+UID:[UID]
+BEGIN:VALARM
+ACTION:AUDIO
+TRIGGER;RELATED=START:-PT10M
+END:VALARM
+END:VTODO
+BEGIN:VTODO
+DTSTAMP:20060205T235300Z
+DUE;VALUE=DATE:20060106
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:NEEDS-ACTION
+SUMMARY:Task #2
+UID:[UID]
+BEGIN:VALARM
+ACTION:AUDIO
+TRIGGER;RELATED=START:-PT10M
+END:VALARM
+END:VTODO
+BEGIN:VTODO
+COMPLETED:20051223T122322Z
+DTSTAMP:20060205T235400Z
+DUE;VALUE=DATE:20051225
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:COMPLETED
+SUMMARY:Task #3
+UID:[UID]
+END:VTODO
+BEGIN:VTODO
+DTSTAMP:20060205T235600Z
+DUE;VALUE=DATE:20060101
+LAST-MODIFIED:20060205T235308Z
+SEQUENCE:1
+STATUS:CANCELLED
+SUMMARY:Task #4
+UID:[UID]
+END:VTODO
+END:VCALENDAR
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__import_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__import_body.snap
@@ -0,0 +1,5 @@
+---
+source: src/integration_tests/caldav/calendar_import.rs
+expression: body
+---
+
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__0_report_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__0_report_body.snap
@@ -0,0 +1,100 @@
+---
+source: src/integration_tests/caldav/calendar_report.rs
+expression: body
+---
+<?xml version="1.0" encoding="utf-8"?>
+<multistatus xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav" xmlns:CS="http://calendarserver.org/ns/" xmlns:PUSH="https://bitfire.at/webdav-push">
+    <response>
+        <href>/caldav/principal/user/calendar/abcd2.ics</href>
+        <propstat>
+            <prop>
+                <getetag>&quot;7d80077c5655339885a36b6dbe97336767fb85e6b12c94668bcac100ed971fac&quot;</getetag>
+                <CAL:calendar-data>BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VTIMEZONE
+LAST-MODIFIED:20040110T032845Z
+TZID:US/Eastern
+BEGIN:DAYLIGHT
+DTSTART:20000404T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+DTSTART:20001026T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060102T120000
+DURATION:PT1H
+RRULE:FREQ=DAILY;COUNT=5
+SUMMARY:Event #2
+UID:abcd2
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060104T140000
+DURATION:PT1H
+RECURRENCE-ID;TZID=US/Eastern:20060104T120000
+SUMMARY:Event #2 bis
+UID:abcd2
+END:VEVENT
+END:VCALENDAR
+</CAL:calendar-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+    <response>
+        <href>/caldav/principal/user/calendar/abcd3.ics</href>
+        <propstat>
+            <prop>
+                <getetag>&quot;c6a5b1cf6985805686df99e7f2e1cf286567dcb3383fc6fa1b12ce42d3fbc01c&quot;</getetag>
+                <CAL:calendar-data>BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VTIMEZONE
+LAST-MODIFIED:20040110T032845Z
+TZID:US/Eastern
+BEGIN:DAYLIGHT
+DTSTART:20000404T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+DTSTART:20001026T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART;TZID=US/Eastern:20060104T100000
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:abcd3
+END:VEVENT
+END:VCALENDAR
+</CAL:calendar-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+</multistatus>
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__1_report_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__1_report_body.snap
@@ -0,0 +1,98 @@
+---
+source: src/integration_tests/caldav/calendar_report.rs
+expression: body
+---
+<?xml version="1.0" encoding="utf-8"?>
+<multistatus xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav" xmlns:CS="http://calendarserver.org/ns/" xmlns:PUSH="https://bitfire.at/webdav-push">
+    <response>
+        <href>/caldav/principal/user/calendar/abcd2.ics</href>
+        <propstat>
+            <prop>
+                <CAL:calendar-data>BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VTIMEZONE
+LAST-MODIFIED:20040110T032845Z
+TZID:US/Eastern
+BEGIN:DAYLIGHT
+DTSTART:20000404T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+DTSTART:20001026T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060102T120000
+DURATION:PT1H
+RRULE:FREQ=DAILY;COUNT=5
+SUMMARY:Event #2
+UID:abcd2
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART;TZID=US/Eastern:20060104T140000
+DURATION:PT1H
+RECURRENCE-ID;TZID=US/Eastern:20060104T120000
+SUMMARY:Event #2 bis
+UID:abcd2
+END:VEVENT
+END:VCALENDAR
+</CAL:calendar-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+    <response>
+        <href>/caldav/principal/user/calendar/abcd3.ics</href>
+        <propstat>
+            <prop>
+                <CAL:calendar-data>BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VTIMEZONE
+LAST-MODIFIED:20040110T032845Z
+TZID:US/Eastern
+BEGIN:DAYLIGHT
+DTSTART:20000404T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZNAME:EDT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+DTSTART:20001026T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZNAME:EST
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART;TZID=US/Eastern:20060104T100000
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:abcd3
+END:VEVENT
+END:VCALENDAR
+</CAL:calendar-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+</multistatus>
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__2_report_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__2_report_body.snap
@@ -0,0 +1,62 @@
+---
+source: src/integration_tests/caldav/calendar_report.rs
+expression: body
+---
+<?xml version="1.0" encoding="utf-8"?>
+<multistatus xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav" xmlns:CS="http://calendarserver.org/ns/" xmlns:PUSH="https://bitfire.at/webdav-push">
+    <response>
+        <href>/caldav/principal/user/calendar/abcd2.ics</href>
+        <propstat>
+            <prop>
+                <CAL:calendar-data>BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DURATION:PT1H
+SUMMARY:Event #2
+UID:abcd2
+RECURRENCE-ID:20060103T170000Z
+DTSTART:20060103T170000Z
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DURATION:PT1H
+SUMMARY:Event #2
+UID:abcd2
+RECURRENCE-ID:20060104T170000Z
+DTSTART:20060104T170000Z
+END:VEVENT
+END:VCALENDAR
+</CAL:calendar-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+    <response>
+        <href>/caldav/principal/user/calendar/abcd3.ics</href>
+        <propstat>
+            <prop>
+                <CAL:calendar-data>BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART;TZID=US/Eastern:20060104T100000
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:abcd3
+END:VEVENT
+END:VCALENDAR
+</CAL:calendar-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+</multistatus>
--- a/src/integration_tests/carddav/addressbook.rs
+++ b/src/integration_tests/carddav/addressbook.rs
@@ -192,3 +192,256 @@ async fn test_carddav_addressbook(
        Err(rustical_store::Error::NotFound)
    ));
 }
+
+#[rstest]
+#[tokio::test]
+async fn test_mkcol_rfc6352_6_3_1_1(
+    #[from(test_store_context)]
+    #[future]
+    context: TestStoreContext,
+) {
+    let context = context.await;
+    let app = get_app(context.clone());
+    let addr_store = context.addr_store;
+
+    let (displayname, description) = (
+        "Lisa's Contacts".to_owned(),
+        "My primary address book.".to_owned(),
+    );
+    let (principal, addr_id) = ("user", "contacts");
+    let url = format!("/carddav/principal/{principal}/{addr_id}");
+
+    let mut request = Request::builder()
+        .method("MKCOL")
+        .uri(&url)
+        .body(Body::from(format!(
+            r#"<?xml version="1.0" encoding="utf-8" ?>
+   <D:mkcol xmlns:D="DAV:"
+                 xmlns:C="urn:ietf:params:xml:ns:carddav">
+     <D:set>
+       <D:prop>
+         <D:resourcetype>
+           <D:collection/>
+           <C:addressbook/>
+         </D:resourcetype>
+         <D:displayname>{displayname}</D:displayname>
+         <C:addressbook-description xml:lang="en"
+   >{description}</C:addressbook-description>
+       </D:prop>
+     </D:set>
+   </D:mkcol>"#
+        )))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CREATED);
+    let body = response.extract_string().await;
+    insta::assert_snapshot!("mkcol_body", body);
+    let saved_addressbook = addr_store
+        .get_addressbook(principal, addr_id, false)
+        .await
+        .unwrap();
+    assert_eq!(
+        (
+            saved_addressbook.displayname.unwrap(),
+            saved_addressbook.description.unwrap()
+        ),
+        (displayname, description)
+    );
+
+    let vcard = r"BEGIN:VCARD
+VERSION:3.0
+FN:Cyrus Daboo
+N:Daboo;Cyrus
+ADR;TYPE=POSTAL:;2822 Email HQ;Suite 2821;RFCVille;PA;15213;USA
+EMAIL;TYPE=INTERNET,PREF:cyrus@example.com
+NICKNAME:me
+NOTE:Example VCard.
+ORG:Self Employed
+TEL;TYPE=WORK,VOICE:412 605 0499
+TEL;TYPE=FAX:412 605 0705
+URL:http://www.example.com
+UID:1234-5678-9000-1
+END:VCARD
+        ";
+
+    let mut request = Request::builder()
+        .method("PUT")
+        .uri(format!("{url}/newcard.vcf"))
+        .header("If-None-Match", "*")
+        .header("Content-Type", "text/vcard")
+        .body(Body::from(vcard))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CREATED);
+    let etag = response.headers().get("ETag").unwrap();
+
+    // This should overwrite
+    let mut request = Request::builder()
+        .method("PUT")
+        .uri(format!("{url}/newcard.vcf"))
+        .header("If-None-Match", "\"somearbitraryetag\"")
+        .header("Content-Type", "text/vcard")
+        .body(Body::from(vcard))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CREATED);
+
+    let mut request = Request::builder()
+        .method("PUT")
+        .uri(format!("{url}/newcard.vcf"))
+        .header("If-None-Match", etag)
+        .header("Content-Type", "text/vcard")
+        .body(Body::from(vcard))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CONFLICT);
+
+    let mut request = Request::builder()
+        .method("PUT")
+        .uri(format!("{url}/newcard.vcf"))
+        .header("If-None-Match", "*")
+        .header("Content-Type", "text/vcard")
+        .body(Body::from(vcard))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CONFLICT);
+}
+
+#[rstest]
+#[tokio::test]
+async fn test_rfc6352_8_7_1(
+    #[from(test_store_context)]
+    #[future]
+    context: TestStoreContext,
+) {
+    let context = context.await;
+    let app = get_app(context.clone());
+    let addr_store = context.addr_store;
+
+    let (displayname, description) = (
+        "Lisa's Contacts".to_owned(),
+        "My primary address book.".to_owned(),
+    );
+    let (principal, addr_id) = ("user", "contacts");
+    let url = format!("/carddav/principal/{principal}/{addr_id}");
+
+    let mut request = Request::builder()
+        .method("MKCOL")
+        .uri(&url)
+        .body(Body::from(format!(
+            r#"<?xml version="1.0" encoding="utf-8" ?>
+   <D:mkcol xmlns:D="DAV:"
+                 xmlns:C="urn:ietf:params:xml:ns:carddav">
+     <D:set>
+       <D:prop>
+         <D:resourcetype>
+           <D:collection/>
+           <C:addressbook/>
+         </D:resourcetype>
+         <D:displayname>{displayname}</D:displayname>
+         <C:addressbook-description xml:lang="en"
+   >{description}</C:addressbook-description>
+       </D:prop>
+     </D:set>
+   </D:mkcol>"#
+        )))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CREATED);
+    let body = response.extract_string().await;
+    insta::assert_snapshot!("mkcol_body", body);
+    let saved_addressbook = addr_store
+        .get_addressbook(principal, addr_id, false)
+        .await
+        .unwrap();
+    assert_eq!(
+        (
+            saved_addressbook.displayname.unwrap(),
+            saved_addressbook.description.unwrap()
+        ),
+        (displayname, description)
+    );
+
+    let vcard = r"BEGIN:VCARD
+VERSION:3.0
+FN:Cyrus Daboo
+N:Daboo;Cyrus
+ADR;TYPE=POSTAL:;2822 Email HQ;Suite 2821;RFCVille;PA;15213;USA
+EMAIL;TYPE=INTERNET,PREF:cyrus@example.com
+NICKNAME:me
+NOTE:Example VCard.
+ORG:Self Employed
+TEL;TYPE=WORK,VOICE:412 605 0499
+TEL;TYPE=FAX:412 605 0705
+URL:http://www.example.com
+UID:1234-5678-9000-1
+END:VCARD
+        ";
+
+    let mut request = Request::builder()
+        .method("PUT")
+        .uri(format!("{url}/newcard.vcf"))
+        .header("If-None-Match", "*")
+        .header("Content-Type", "text/vcard")
+        .body(Body::from(vcard))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CREATED);
+
+    let mut request = Request::builder()
+        .method("REPORT")
+        .uri(&url)
+        .header("Depth", "infinity")
+        .header("Content-Type", "text/xml; charset=\"utf-8\"")
+        .body(Body::from(format!(
+            r#"
+            <?xml version="1.0" encoding="utf-8" ?>
+            <C:addressbook-multiget xmlns:D="DAV:"
+                                    xmlns:C="urn:ietf:params:xml:ns:carddav">
+                <D:prop>
+                <D:getetag/>
+                <C:address-data>
+                    <C:prop name="VERSION"/>
+                    <C:prop name="UID"/>
+                    <C:prop name="NICKNAME"/>
+                    <C:prop name="EMAIL"/>
+                    <C:prop name="FN"/>
+                </C:address-data>
+                </D:prop>
+                <D:href>{url}/newcard.vcf</D:href>
+                <D:href>/home/bernard/addressbook/vcf1.vcf</D:href>
+            </C:addressbook-multiget>
+        "#
+        )))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::MULTI_STATUS);
+    let body = response.extract_string().await;
+    insta::assert_snapshot!("multiget_body", body);
+}
--- a/src/integration_tests/carddav/snapshots/rustical__integration_testscarddavaddressbook__multiget_body.snap
+++ b/src/integration_tests/carddav/snapshots/rustical__integration_testscarddavaddressbook__multiget_body.snap
@@ -0,0 +1,35 @@
+---
+source: src/integration_tests/carddav/addressbook.rs
+expression: body
+---
+<?xml version="1.0" encoding="utf-8"?>
+<multistatus xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav" xmlns:CS="http://calendarserver.org/ns/" xmlns:PUSH="https://bitfire.at/webdav-push">
+    <response>
+        <href>/carddav/principal/user/contacts/newcard.vcf</href>
+        <propstat>
+            <prop>
+                <getetag>&quot;24835b6c11816c864f9edadd4c7c296234c643892afcbbc5fbf5c9b7ac935cf8&quot;</getetag>
+                <CARD:address-data>BEGIN:VCARD
+VERSION:3.0
+FN:Cyrus Daboo
+N:Daboo;Cyrus
+ADR;TYPE=POSTAL:;2822 Email HQ;Suite 2821;RFCVille;PA;15213;USA
+EMAIL;TYPE=INTERNET,PREF:cyrus@example.com
+NICKNAME:me
+NOTE:Example VCard.
+ORG:Self Employed
+TEL;TYPE=WORK,VOICE:412 605 0499
+TEL;TYPE=FAX:412 605 0705
+URL:http://www.example.com
+UID:1234-5678-9000-1
+END:VCARD
+        </CARD:address-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+    <response>
+        <href>/home/bernard/addressbook/vcf1.vcf</href>
+        <status>HTTP/1.1 404 Not Found</status>
+    </response>
+</multistatus>
--- a/src/main.rs
+++ b/src/main.rs
@@ -25,7 +25,7 @@ use std::sync::Arc;
 use tokio::sync::mpsc::Receiver;
 use tower::Layer;
 use tower_http::normalize_path::NormalizePathLayer;
-use tracing::info;
+use tracing::{info, warn};

 mod app;
 mod commands;
@@ -34,6 +34,9 @@ mod config;
 pub mod integration_tests;
 mod setup_tracing;

+mod migration_0_12;
+use migration_0_12::{validate_address_objects_0_12, validate_calendar_objects_0_12};
+
 #[derive(Parser, Debug)]
 #[command(author, version, about, long_about = None)]
 struct Args {
@@ -67,15 +70,22 @@ async fn get_data_stores(
    Receiver<CollectionOperation>,
 )> {
    Ok(match &config {
-        DataStoreConfig::Sqlite(SqliteDataStoreConfig { db_url }) => {
+        DataStoreConfig::Sqlite(SqliteDataStoreConfig {
+            db_url,
+            run_repairs,
+        }) => {
            let db = create_db_pool(db_url, migrate).await?;
            // Channel to watch for changes (for DAV Push)
            let (send, recv) = tokio::sync::mpsc::channel(1000);

            let addressbook_store = Arc::new(SqliteAddressbookStore::new(db.clone(), send.clone()));
-            addressbook_store.repair_orphans().await?;
            let cal_store = Arc::new(SqliteCalendarStore::new(db.clone(), send));
+            if *run_repairs {
+                info!("Running repair tasks");
+                addressbook_store.repair_orphans().await?;
+                cal_store.repair_invalid_version_4_0().await?;
                cal_store.repair_orphans().await?;
+            }
            let subscription_store = Arc::new(SqliteStore::new(db.clone()));
            let principal_store = Arc::new(SqlitePrincipalStore::new(db));
            (
@@ -115,6 +125,14 @@ async fn main() -> Result<()> {
            let (addr_store, cal_store, subscription_store, principal_store, update_recv) =
                get_data_stores(!args.no_migrations, &config.data_store).await?;

+            warn!(
+                "Validating calendar data against the next-version ical parser.
+In the next major release these will be rejected and cause errors.
+If any errors occur, please open an issue so they can be fixed before the next major release."
+            );
+            validate_calendar_objects_0_12(principal_store.as_ref(), cal_store.as_ref()).await?;
+            validate_address_objects_0_12(principal_store.as_ref(), addr_store.as_ref()).await?;
+
            let mut tasks = vec![];

            if config.dav_push.enabled {
--- a/src/migration_0_12.rs
+++ b/src/migration_0_12.rs
@@ -0,0 +1,80 @@
+use rustical_store::{AddressbookStore, CalendarStore, auth::AuthenticationProvider};
+use tracing::{error, info};
+
+pub async fn validate_calendar_objects_0_12(
+    principal_store: &impl AuthenticationProvider,
+    cal_store: &impl CalendarStore,
+) -> Result<(), rustical_store::Error> {
+    let mut success = true;
+    for principal in principal_store.get_principals().await? {
+        for calendar in cal_store.get_calendars(&principal.id).await? {
+            for object in cal_store
+                .get_objects(&calendar.principal, &calendar.id)
+                .await?
+            {
+                if let Err(err) =
+                    ical_dev::parser::ical::IcalObjectParser::new(object.get_ics().as_bytes())
+                        .expect_one()
+                {
+                    success = false;
+                    error!(
+                        "An error occured parsing a calendar object: principal={principal}, calendar={calendar}, object_id={object_id}: {err}",
+                        principal = principal.id,
+                        calendar = calendar.id,
+                        object_id = object.get_id()
+                    );
+                    println!("{}", object.get_ics());
+                }
+            }
+        }
+    }
+    if success {
+        info!("Your calendar data seems to be valid in the next major version.");
+    } else {
+        error!(
+            "Not all calendar objects will be successfully parsed in the next major version (v0.12).
+This will not cause issues in this version, but please comment under the tracking issue on GitHub:
+https://github.com/lennart-k/rustical/issues/165"
+        );
+    }
+    Ok(())
+}
+
+pub async fn validate_address_objects_0_12(
+    principal_store: &impl AuthenticationProvider,
+    addr_store: &impl AddressbookStore,
+) -> Result<(), rustical_store::Error> {
+    let mut success = true;
+    for principal in principal_store.get_principals().await? {
+        for addressbook in addr_store.get_addressbooks(&principal.id).await? {
+            for object in addr_store
+                .get_objects(&addressbook.principal, &addressbook.id)
+                .await?
+            {
+                if let Err(err) =
+                    ical_dev::parser::vcard::VcardParser::new(object.get_vcf().as_bytes())
+                        .expect_one()
+                {
+                    success = false;
+                    error!(
+                        "An error occured parsing an address object: principal={principal}, addressbook={addressbook}, object_id={object_id}: {err}",
+                        principal = principal.id,
+                        addressbook = addressbook.id,
+                        object_id = object.get_id()
+                    );
+                    println!("{}", object.get_vcf());
+                }
+            }
+        }
+    }
+    if success {
+        info!("Your addressbook data seems to be valid in the next major version.");
+    } else {
+        error!(
+            "Not all address objects will be successfully parsed in the next major version (v0.12).
+This will not cause issues in this version, but please comment under the tracking issue on GitHub:
+https://github.com/lennart-k/rustical/issues/165"
+        );
+    }
+    Ok(())
+}
Author	SHA1	Message	Date
Lennart	60b45e70ad	fix docker builds	2026-01-15 22:31:40 +01:00
Lennart	a0c33c82dd	version 0.11.14	2026-01-15 13:32:45 +01:00
Lennart	8ae5e46abf	Automatic repair for calendar objects with invalid VERSION:4.0	2026-01-15 13:30:14 +01:00
Lennart	48b2e614a8	Suppress ical invalid version error	2026-01-15 11:15:20 +01:00
Lennart K	f26214abb9	build Docker images for dev branch	2026-01-12 11:15:08 +01:00
Lennart	276e65d41a	version 0.11.11	2026-01-10 13:37:24 +01:00
Lennart	7c3e9ecbc1	update ical-rs dev to remove panics	2026-01-10 13:35:14 +01:00
Lennart	53f81a9433	Add a startup test to check whether existing data will be compatible with v0.12	2026-01-10 13:22:49 +01:00
Lennart	55eabfde4a	version 0.11.10	2026-01-04 00:06:43 +01:00
Lennart	5d9d6e3fdf	update snapshots	2026-01-04 00:06:16 +01:00
Lennart	1567bc64ef	addressbook-query: Fix filter matching for empty filters	2026-01-04 00:05:07 +01:00
Lennart	44ae995f29	Some small fixes on recurrence expansion	2025-12-31 19:54:06 +01:00
Lennart	9c1cd24d32	test data fix uid	2025-12-31 19:47:29 +01:00
Lennart	ff0c5697cf	caldav expand: accept <prop>	2025-12-31 19:47:13 +01:00
Lennart	6ccb5a67e4	ical: Respect that calendar do not have to contain a main event	2025-12-31 17:55:58 +01:00
Lennart	da718dd290	caldav: Add import test case from RFC Appendix B	2025-12-31 17:55:30 +01:00
Lennart	4112347e24	more integration tests	2025-12-31 17:36:02 +01:00
Lennart	f4fd1cdd21	caldav max-resource-size: Fix namespace	2025-12-31 17:35:51 +01:00
Lennart	5f0ca67e54	docs: Add document to track progress of CardDAV support	2025-12-31 17:00:14 +01:00
Lennart	3aef9abe48	carddav: Add more integration tests	2025-12-31 16:50:55 +01:00
Lennart	9784f2b53f	PUT object: Properly check If-None-Match header	2025-12-31 16:50:32 +01:00
Lennart	271fdfd686	PUT object: Return ETag	2025-12-31 16:17:34 +01:00